Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hoa don snippets" » "danh hoa don snippets", "dan hoat don snippets", "dan khoa don snippets", "dan hoa dong snippets", "dan hoa dan snippets", "dan hoa doi 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: (((("dan hoa 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: (((("dan hoa don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hoa don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hoa don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.