Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
manh tung » manh hung, thanh tung
cua khong » hua khong, cua phuong, cua thuong
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, huong dan, cong tac
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap

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 - manh tung cua khong ((((cong dan) or (cong dong))) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - manh tung cua khong ((((cong dan) OR (cong dong))) OR (cong tan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - manh tung cua khong ((((cong dan) or (cong dong))) or (cong tan)) than cau*.