Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi choi hee snippets" » "doi chi hee snippets", "do choi hee snippets", "doi hoi hee snippets", "doi cho he snippets", "doi choi tre snippets", "doi khoi he 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: (((("doi choi hee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi choi hee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi choi hee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi choi hee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.