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