Perhaps you should try some spelling variations:
"dung using java snippets" » "dung ung java snippets", "dung sinh java snippets", "dung uong java snippets", "dung using data snippets"
"luong cac code snippets" » "luong cuoc code snippets", "luong va code snippets", "luong tai code snippets", "luong cac cong snippets", "luong cac co snippets", "luong cac 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 using java snippets") or ("luong cac code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung using java snippets") OR ("luong cac code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung using java snippets ) or ( luong cac code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung using java snippets") or ("luong cac code snippets"))) or ("locating bug core snippets"))*.