Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khi hoc dot snippets" » "khi hoi dot snippets", "khien hoc dot snippets", "khoa hoc dot snippets", "khi hoc dat snippets", "khi hoc do snippets", "khi hoc doi snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("khi hoc dot snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi hoc dot snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
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