Perhaps you should try some spelling variations:
"nang viet java snippets" » "anh viet java snippets", "nang viet va snippets", "nang viet java slippers"
"trinh java java snippets" » "trinh java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("nang viet java snippets") or ("trinh java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang viet java snippets") OR ("trinh java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang viet java snippets ) or ( trinh java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang viet java snippets") or ("trinh java java snippets"))) or ("locating bug code snippets"))*.