Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan thi dac snippets" » "pham thi dac snippets", "tran thi dac snippets", "phan tu dac snippets", "phan thai dac snippets", "phan thi dai snippets", "phan thi tac snippets", "phan thi dac 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: (((("phan thi dac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan thi dac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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