Perhaps you should try some spelling variations:
chong cong » cong cong, thong cong, cuong cong
thien anh » thien danh, tien anh, thien thanh
tung tuan » trung tuan, hung tuan, quang tuan
dien dan » hien dai, vien dai, gian dan
cong san » cong tac
san than » sang than, san thanh, ban than
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 anh) or (dien dan)) - thanh ((tung tuan) or (quan luan)) chong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (dien dan)) - thanh ((tung tuan) OR (quan luan)) chong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (dien dan)) - thanh ((tung tuan) or (quan luan)) chong cong san than cap*.