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