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