Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua hon den snippets" » "cua hoi den snippets", "cua hoc den snippets", "ca hon den snippets", "cua don den snippets", "cua hon don 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: (((("cua hon den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua hon den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua hon den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua hon den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.