Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi can ke snippets" » "khoi can code snippets", "khoa can ke snippets", "khoi nang ke snippets", "hoc can ke snippets", "khoi ban ke snippets", "khoi can ve snippets", "khoi can we 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: (((("khoi can ke snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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