Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toan hoc tin snippets" » "toan khoa tin snippets", "van hoc tin snippets", "hoa hoc tin snippets", "toan hoc tan snippets", "toan hoc tieng snippets", "toan hoc hien snippets", "toan 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: (((("toan 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: (((("toan hoc tin snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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