Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"benh hoi den snippets" » "benh phoi den snippets", "benh nhoi den snippets", "benh hoc den snippets", "benh hoi dien snippets", "benh hoi dan snippets", "benh moi 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: (((("benh hoi 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: (((("benh hoi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( benh hoi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("benh hoi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.