Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khap su hoc snippets" » "phap su hoc snippets", "thap su hoc snippets", "khat sua hoc snippets", "khap tu hoc snippets", "khap du hoc snippets", "khap so hoc snippets"

Try widening your search to All Fields.

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