Perhaps you should try some spelling variations:
"dung trinh java snippets" » "dung tinh java snippets", "dong trinh java snippets", "cong trinh java snippets"
"dong hung code snippets" » "dong huong code snippets", "dang hung code snippets", "cong hung code snippets", "dong bug code 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 trinh java snippets") or ("dong hung code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung trinh java snippets") OR ("dong hung code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung trinh java snippets ) or ( dong hung code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung trinh java snippets") or ("dong hung code snippets"))) or ("locating bug core snippets"))*.