Perhaps you should try some spelling variations:
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"tran luan thuc snippets" » "tranh luan thuc snippets", "tran xuan thuc snippets", "tran tuan thuc snippets", "tran dan thuc snippets", "tran nhan thuc snippets", "tran toan thuc snippets", "tran luan thuc 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung java java slippery\") OR (\"tran luan thuc snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java slippery ) OR ( tran luan thuc snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippery") OR ("tran luan thuc snippets"))) OR ("locating bug code snippets"))*.