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