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