Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hieu manh, nghiep nganh
thanh tran » thanh trang, thanh toan, thanh tra
tuan khong » toan khong, tuan phong, thuan phong
khong cang » thong cong, hong bang, khong dung
hiem ngan » kim ngan, viem gan
tran tuan » tran xuan, tran quang, tran thanh
cang dan » cong dan, tang dan, canh dan
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 ((hieu nganh) OR (hiem ngan)) - thanh tran tuan khong cang dan ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (hiem ngan)) - thanh tran tuan khong cang dan ((than cap) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu nganh) OR (hiem ngan)) - thanh tran tuan khong cang dan ((than cap) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) OR (hiem ngan)) - thanh tran tuan khong cang dan ((than cap) or (phan cau))*.