Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van anh dung snippets" » "van anh dong snippets", "van anh huong snippets", "van sach dung snippets", "van thanh dung snippets", "van minh dung snippets", "tuan anh dung snippets", "van anh 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 anh 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 anh dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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