Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hien xanh » hien hanh, hien nhanh, chieu xanh
thoai cac » thong cac, tho cac, hoa cac
van hung » manh hung, van duong, van dong
van dung » van dong, xay dung, tin dung
cong san » cong tac
tai cac » tai cuc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh tran ((van hung) OR (van dung)) cong san ((thoai cac) OR (tai cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - thanh tran ((van hung) or (van dung)) cong san ((thoai cac) OR (tai cac))~".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh tran ((van hung) or (van dung)) cong san ((thoai cac) OR (tai cac))*.