Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tan thanh » tran thanh, tang thanh, toan thanh
thanh cac » hanh cac, thanh bac, thanh ca
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
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 chinh sach - thanh ((trung va) or (trang va)) thuong cong tan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - thanh ((trung va) OR (trang va)) thuong cong tan thanh cac.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - thanh ((trung va) or (trang va)) thuong cong tan thanh cac*.