Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"sach hoc anh snippets" » "cach hoc anh snippets", "sach hoi anh snippets", "mach hoc anh snippets", "sach hoc nganh snippets", "sach hoc nhanh snippets", "sach hoc sinh snippets", "sach hoc anh 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: (((("sach hoc anh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach hoc anh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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