Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cuong cac ke snippets" » "luong cac ke snippets", "cong cac ke snippets", "trong cac ke snippets", "cuong cac ket snippets", "cuong tac ke snippets", "cuong cac ky 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: (((("dung java java snippets") or ("cuong cac ke snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cuong cac ke snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cuong cac ke snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cuong cac ke snippets"))) or ("locating bug code snippets"))*.