Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
manh tung » manh hung, thanh tung
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap

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