Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cuu » trung cua, trung cau, truong cua
tong cong » trong cong, cong cong, dung cong
cuu tong » cuu cong, cuu tinh, huu tung
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 xanh - thanh trung cuu tong cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh trung cuu tong cong ((dan than) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh trung cuu tong cong ((dan than) or (dan chan)) cau*.