Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam sach co snippets" » "nam sach co snippets", "pham sach co snippets", "lam sang co snippets", "lam sach lo snippets", "lam sach dao snippets", "lam sach cap 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 co 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 co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam sach co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam sach co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.