Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"sach hoc van snippets" » "cach hoc van snippets", "sach hoi van snippets", "mach hoc van snippets", "sach hoc dan snippets", "sach hoc va snippets", "sach hoc vat snippets", "sach hoc van 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 van 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 van snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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