Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong dat viet slippers" » "dong vat viet slippers", "dung dat viet slippers", "dong ha viet slippers", "dong dao viet slippers", "dong da viet slippers", "dong dai viet slippers", "dong dat viet slippery", "dong dat viet grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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 ("dong dat viet slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dong dat viet slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong dat viet slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong dat viet slippers"))) or ("locating bug code snippets"))*.