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