Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
lanh manh » lanh tranh, lan anh, van manh
manh cua » doanh cua, ban cua
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 - lanh manh cua hang ((cong dan) or (cong tan)) ((than cau) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - lanh manh cua hang ((cong dan) OR (cong tan)) ((than cau) OR (than cap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - lanh manh cua hang ((cong dan) or (cong tan)) ((than cau) OR (than cap))*".