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