Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoi han tap snippets" » "hoi han tap snippets", "khoi can tap snippets", "khoa than tap snippets", "khoi han tai snippets", "khoi toan tap snippets", "khoi nhan tai snippets", "khoi han tap slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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