Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chon cac hoi snippets" » "chon cac code snippets", "cho cac hoi snippets", "thong cac hoi snippets", "hoc cac hoi snippets", "chon cac thoi snippets", "chon cac khoi snippets", "chon cau hoi 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: (((("chon cac hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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