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"
"locating bug core snippets" » "locating bug 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 core 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 core snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java slippery ) or ( tran toan code snippets ))) or ( locating bug core snippets ))*.