Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam tu cong snippets" » "lam thu cong snippets", "lam te cong snippets", "lam tai cong snippets", "nam tu cong snippets", "cam tu cong snippets", "dam tu cong 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 tu cong 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 tu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam tu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam tu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.