Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat ca toc snippets" » "nhat cua toc snippets", "nhap ca toc snippets", "hat ca toc snippets", "nhat cac toc snippets", "nhat cao 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: (((("nhat ca 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: (((("nhat ca toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat ca toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat ca toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.