Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc tru du snippets" » "toc bru du snippets", "thuoc tru du snippets", "hoc truc du snippets", "toc truc du snippets", "toc tru su snippets", "toc tu du 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 tru du 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 tru du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc tru du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc tru du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.