Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua moi den snippets" » "cua moi den snippets", "dua voi den snippets", "vua moi den snippets", "dua hoi den snippets", "dua moi dan snippets", "dua moi de 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: (((("dua moi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua moi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua moi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua moi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.