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