Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tho hoi phan snippets" » "tho phoi phan snippets", "tho hoc phan snippets", "tho hoa phan snippets", "tho thoi phan snippets", "tao hoi phan snippets", "tho moi phan snippets", "tho hoi phan 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: (((("tho hoi phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tho hoi phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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