Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tinh cong code snippets" » "trinh cong code snippets", "tinh cuong code snippets", "minh cong code snippets", "tinh cong cong snippets", "tinh cong co snippets", "tinh cong che 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 snippets") or ("tinh cong code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tinh cong code snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tinh cong code snippets ))) or ( locating bug core snippets ))*.