Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam sach cau snippets" » "nam sach cau snippets", "pham sach cau snippets", "lam sang cau snippets", "lam sach cap snippets", "lam sach dau snippets", "lam sach mau snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lam sach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam sach cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("lam sach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.