Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc bai cua snippets" » "hoc bai cua snippets", "toc ba cua snippets", "toc bi cua snippets", "toc ban cua snippets", "toc dai cua snippets", "toc bai ca 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 bai cua 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 bai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc bai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc bai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.