Perhaps you should try some spelling variations:
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"tran toan code snippets" » "tranh toan code snippets", "tran tuan code snippets", "tran tan code snippets", "tran toan co snippets", "tran toan cong snippets", "tran toan de snippets", "tran toan code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 toan code 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 toan code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java slippery ) or ( tran toan code snippets ))) or ( locating bug code snippets ))*.