Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chi cua dung snippets" » "chi cua dang snippets", "chi cua dong snippets", "chi qua dung snippets", "chi cuc dung snippets", "khi cua dung snippets", "cuoi cua dung snippets", "chi cua 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: (((("chi cua 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: (((("chi cua dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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