Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chun hoc tin snippets" » "chung hoc tin snippets", "chun ho tin snippets", "chuan hoa tin snippets", "chun hoc tan snippets", "chun hoc tieng snippets", "chun hoc hien snippets", "chun hoc tin 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: (((("chun hoc tin snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chun hoc tin snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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