Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
chieu xanh » chieu sach, chieu sang, chieu tinh
thien anh » thien danh, tien anh, thien thanh
tran tuan » tran xuan, tran quang, tran thanh
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong tap » cuong tap, cong tac, cong tan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (thien anh)) - thanh tran tuan dung cong tap ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (thien anh)) - thanh tran tuan dung cong tap ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (thien anh)) - thanh tran tuan dung cong tap ((toan cau) OR (toan ban))*.