Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu thu toc snippets" » "tieu thu toc snippets", "kien thuc toc snippets", "kieu thu tuc snippets", "kieu thi toc snippets", "kieu thu hoc 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: (((("kieu thu 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: (((("kieu thu toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu thu toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu thu toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.