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