Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"d tran hoang snippets" » "d quan hoang snippets", "d tran quang snippets", "d tranh hang snippets", "_ tran hoang snippets", "m tran hoang snippets", "n tran hoang 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: (((("d tran hoang snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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