Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi ha den snippets" » "hoi va den snippets", "hoi khoa den snippets", "hoi nhap den snippets", "hoi hau den snippets", "hoi ra den 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: (((("hoi ha 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: (((("hoi ha den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi ha den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi ha den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.