Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dung mo quan snippets" » "dung co quan snippets", "dung cho quan snippets", "dung von quan snippets", "dung moi quan snippets", "dung mao quan snippets", "dung mot quan snippets", "dung mo quan 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: (((("dung mo quan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung mo quan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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