Perhaps you should try some spelling variations:
tuan nhung » quan nhung, tuan hung, thuat nhung
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh tram » hanh tam, hanh trang, thanh tran
tram tuan » tran tuan, trang tuan, tran xuan
thanh cac » hanh cac, thanh bac, thanh ca
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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 - hanh tram tuan nhung ((cong dan) OR (cong san)) ((than cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh tram tuan nhung ((cong dan) OR (cong san)) ((than cau) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh tram tuan nhung ((cong dan) OR (cong san)) ((than cau) or (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tram tuan nhung ((cong dan) OR (cong san)) ((than cau) or (thanh cac))*.