Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nao cap dung snippets" » "nao ap dung snippets", "nao chan dung snippets", "nao cach dung snippets", "cao cap dung snippets", "nang cap dung snippets", "nuoc cap dung snippets", "nao cap dung 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: (((("nao cap dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao cap dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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