Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam di cong snippets" » "lam doi cong snippets", "lam dai cong snippets", "lam bi cong snippets", "lam gi cong snippets", "lay di cong snippets", "nam di 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 di 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 di cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam di cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam di cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.