Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoi hang ha snippets" » "khoi nang ha snippets", "khoi khong ha snippets", "khoai lang ha snippets", "khoi hang hoa snippets", "khoi hang hai snippets", "khoi hoang ha snippets", "khoi hang ha 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 hang ha 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 hang ha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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