Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam phan ve snippets" » "dam phan ve snippets", "nam phan ve snippets", "lam nhan ve snippets", "lam phan le snippets", "lam phan va snippets", "lam pha ve 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 phan ve 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 phan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam phan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam phan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.