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