Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"nao te dung snippets" » "nao tieu dung snippets", "nao tien dung snippets", "nao tin dung snippets", "nao de dung snippets", "nao me dung snippets", "nao tu dung snippets", "nao te 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 te 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 te dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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