Perhaps you should try some spelling variations:
"tran cong code snippets" » "tran hong code snippets", "trien cong code snippets", "tran hoang code snippets", "tran cong cong snippets", "tran cong co snippets", "tran cong che snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung va java snippets" » "dung java java snippets"

You may be able to get more results by adjusting your search query.

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