Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chon van tri snippets" » "chon va tri snippets", "thong van tri snippets", "phong van tri snippets", "chon van tai snippets", "chon van thi snippets", "chon van toi snippets", "chon van tri 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: (((("chon van tri snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon van tri snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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