Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
thong cong » trong cong, tong cong, thong thong
hien ngan » hiem ngan, vien nganh, hien nhanh
tuong ca » truong ca, tuong cay, tuong cua
ca thong » ca thuong, va thong, ca trong
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien ngan - thanh tuong ca thong cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien ngan - thanh tuong ca thong cong ((dan than) OR (dan chan)) cau*.