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