Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van dam dung snippets" » "van dam duong snippets", "van dan dung snippets", "van dam dong snippets", "van nam dung snippets", "van dao dung snippets", "van dau dung snippets", "van dam 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: (((("van dam 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: (((("van dam dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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