Perhaps you should try some spelling variations:
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"tran tuan khuc snippets" » "tran xuan khuc snippets", "tran quang khuc snippets", "tran thanh khuc snippets", "tran thuan thuc snippets", "tran tuan thu snippets", "tran luan thuc snippets", "tran tuan khuc slippers"
"locating bug code snippets" » "locating bug code slippers", "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 slippery") or ("tran tuan khuc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java slippery") OR ("tran tuan khuc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java slippery ) or ( tran tuan khuc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippery") or ("tran tuan khuc snippets"))) or ("locating bug code snippets"))*.