Perhaps you should try some spelling variations:
"lam sach sio2 snippets" » "lam sic sio2 snippets", "nam sach sio2 snippets", "pham sach sio2 snippets", "lam sang sio2 snippets", "lam sach sio2 slippers"
"python using a snippets" » "python using a 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.

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 sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam sach sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("lam sach sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.