Perhaps you should try some spelling variations:
thanh trung » thanh tung
thien tinh » khien tinh, thien minh, trien tinh
tien tinh » tien thinh, tien trinh, trien tinh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
cua tong » cua cong, cua dong, cua nong
cong tan » cong tac, cong san, cong thanh

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 tinh) or (tien tinh)) - thanh trung cua tong cong tan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien tinh) OR (tien tinh)) - thanh trung cua tong cong tan thanh lap*.