Perhaps you should try some spelling variations:
"dung uong java snippets" » "dung huong java snippets", "dung luong java snippets", "dung cong java snippets", "dung using java snippets", "dung uong java slippers"
"luan anh code snippets" » "luan danh code snippets", "tuan anh code snippets", "lan anh code snippets", "luan anh co snippets", "luan anh cong snippets", "luan anh code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 uong java snippets") or ("luan anh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung uong java snippets") OR ("luan anh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung uong java snippets ) or ( luan anh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung uong java snippets") or ("luan anh code snippets"))) or ("locating bug code snippets"))*.