Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam chi cong snippets" » "lam thi cong snippets", "lam cho cong snippets", "lam phi cong snippets", "nam chi cong snippets", "lam chu cong snippets", "la chi 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 chi 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 chi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam chi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam chi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.