Perhaps you should try some spelling variations:
nghiep nganh » nghiep thanh, nghiep ninh, nghiep anh
thanh trung » thanh tung
thuong cong » thong cong, thuong con, thuong dong
hiem ngan » kim ngan, viem gan
ca thuong » cao thuong, cua thuong, va thuong
trung ca » trung cap, truong ca, trung cua
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nghiep nganh) or (hiem ngan)) - thanh trung ca thuong cong san ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nghiep nganh) OR (hiem ngan)) - thanh trung ca thuong cong san ((than cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((nghiep nganh) or (hiem ngan)) - thanh trung ca thuong cong san ((than cap) or (phan cau))*.