Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"con cac dinh snippets" » "con xac dinh snippets", "con cac tinh snippets", "con cac hinh snippets", "chon cac dinh snippets", "cong cac dinh snippets", "co cac dinh snippets", "con cac dinh 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: (((("con cac dinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cac dinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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