Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi hoc dung snippets" » "doi hoc ung snippets", "doi hoc dan snippets", "doi hoc cong snippets", "doi hoac dung snippets", "dai hoc dung snippets", "hoi hoc dung snippets", "doi hoc 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: (((("python using java snippets") or ("doi hoc dung snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi hoc dung snippets"))) OR ("locating bug code snippets")).
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