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