Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
tranh tuan » tran tuan, tranh luan, thanh tuan
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
dien anh » tieng anh, dien dan
cong dan » cong san, cong tan, huong dan
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 ((thien thanh) or (dien anh)) - canh tranh tuan dang cong dan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (dien anh)) - canh tranh tuan dang cong dan ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (dien anh)) - canh tranh tuan dang cong dan ((than cau) or (than cap))*.