Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
khoa tieng » thoai tieng, hoc tieng, khoa tinh
hang khoa » dung khoa
tieng ket » tieng viet, thien ket, lien ket
hoan tien » hoan thien, toan tien, toan tieng
ket luan » ket qua, te luan, dat luan
qua » quan
kinh » dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (ngan or nhan) hang khoa tieng ket luan ((hieu luat) OR (hieu qua)) kinh doanh hoan tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (ngan OR nhan) hang khoa tieng ket luan ((hieu luat) OR (hieu qua)) kinh doanh hoan tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(ngan or nhan) hang khoa tieng ket luan ((hieu luat) OR (hieu qua)) kinh doanh hoan tien".
• Adding a wildcard symbol may retrieve word variants: (ngan or nhan) hang khoa tieng ket luan ((hieu luat) OR (hieu qua)) kinh doanh hoan tien*.