Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
nhung cong » dung cong, thong cong, hang cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tran tuan » tran xuan, tran quang, tran thanh
ho chinh » cho chinh, hoa chinh, do chinh
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chinh) or (hoc chinh)) sach - thanh ((trung tuan) or (tran tuan)) nhung cong tan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (hoc chinh)) sach - thanh ((trung tuan) OR (tran tuan)) nhung cong tan than cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) or (hoc chinh)) sach - thanh ((trung tuan) or (tran tuan)) nhung cong tan than cau*.