Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua huu chan snippets" » "cua huu han snippets", "cua huu chau snippets", "cua huu phan snippets", "cua cuu chan snippets", "chat huu chan snippets", "cua nhua chan 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 huu chan 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 huu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua huu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua huu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.