Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong va hoi snippets" » "duong va code snippets", "duong van hoi snippets", "dung va hoi snippets", "luong va hoi snippets", "duong xa hoi snippets", "duong va hoc snippets", "duong va hoa 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: (((("duong va hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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