Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dang hung wu snippets" » "dang quang wu snippets", "manh hung wu snippets", "dang cong wu snippets", "dang hung vu snippets", "dang hung tu snippets", "dang hang wu snippets", "dang hung wu 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: (((("dang hung wu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hung wu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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