Perhaps you should try some spelling variations:
"cong dung co snippets" » "cuong dung co snippets", "cong dong co snippets", "cong luong co snippets", "cong dung cho snippets", "cong dung cong snippets", "cong dung cua snippets"
"dung ngu java snippets" » "dung nga java snippets", "dung ngo java snippets", "dung nguoi java snippets", "dung ngu va snippets"
"locating bug code snippets" » "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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung ngu java snippets") or ("cong dung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ngu java snippets") OR ("cong dung co snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung ngu java snippets ) or ( cong dung co snippets ))) or ( locating bug code snippets ))*.