Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"len toi cac snippets" » "len toi code snippets", "len troi cac snippets", "len thoi cac snippets", "len ngoi cac snippets", "len tai cac snippets", "len voi cac snippets", "len ton cac snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("len toi cac snippets"))) or ("locating bug core snippets"))~.
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