Perhaps you should try some spelling variations:
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"phan dang code snippets" » "phan dau code snippets", "phan cong code snippets", "nhan dan code snippets", "phan dang cong snippets", "phan dang co snippets", "phan dang de snippets", "phan dang 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 ("phan dang 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 ("phan dang code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java slippery ) or ( phan dang code snippets ))) or ( locating bug code snippets ))*.