Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung cap, dung cua
theo cau » theo chu, theo cap, theo dau
cau sach » cao sach, hau sach, rau sach
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cau sach - hanh ((trung cua) or (trung tuan)) nhung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cau sach - hanh ((trung cua) OR (trung tuan)) nhung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: theo cau sach - hanh ((trung cua) or (trung tuan)) nhung cong san toan ban*.