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