"try as one may" meaning in English

{
  "head_templates": [
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        "1": "en",
        "2": "phrase"
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      "expansion": "try as one may",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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      "examples": [
        {
          "ref": "2013, Michael Myers, Doctors’ Marriages: A Look at the Problems and Their Solutions",
          "text": "They didn't persist and quickly drove off, as Sam and Tom tried to ignore them and dismiss the entire experience. But try as they may, they weren't able to forget.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "However hard one tries; despite one's best efforts."
      ],
      "id": "en-try_as_one_may-en-phrase-jPUyb~lj",
      "links": [
        [
          "However",
          "however"
        ],
        [
          "hard",
          "hard#Adjective"
        ],
        [
          "tries",
          "try#Verb"
        ],
        [
          "best",
          "good#Adjective"
        ],
        [
          "effort",
          "effort"
        ]
      ],
      "related": [
        {
          "word": "with all one's might"
        }
      ],
      "synonyms": [
        {
          "word": "try as one might"
        }
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪ"
    }
  ],
  "word": "try as one may"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "try as one may",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "with all one's might"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with quotations",
        "Rhymes:English/eɪ",
        "Rhymes:English/eɪ/4 syllables"
      ],
      "examples": [
        {
          "ref": "2013, Michael Myers, Doctors’ Marriages: A Look at the Problems and Their Solutions",
          "text": "They didn't persist and quickly drove off, as Sam and Tom tried to ignore them and dismiss the entire experience. But try as they may, they weren't able to forget.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "However hard one tries; despite one's best efforts."
      ],
      "links": [
        [
          "However",
          "however"
        ],
        [
          "hard",
          "hard#Adjective"
        ],
        [
          "tries",
          "try#Verb"
        ],
        [
          "best",
          "good#Adjective"
        ],
        [
          "effort",
          "effort"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪ"
    }
  ],
  "synonyms": [
    {
      "word": "try as one might"
    }
  ],
  "word": "try as one may"
}