Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khac hoc de snippets" » "khac phuc de snippets", "khac cuoc de snippets", "khoa hoc de snippets", "khac hoc he snippets", "khac hoc te snippets", "khac hoc do snippets"

Try widening your search to All Fields.

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