Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc giay che snippets" » "toc tay che snippets", "tac gia che snippets", "hoc giao che snippets", "toc may che snippets", "toc giay ha snippets", "toc giay cau 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: (((("toc giay che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc giay che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc giay che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc giay che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.