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