Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh tranh » canh tranh, hanh trinh, hanh trang
cua thuong » cua truong, cua phuong, ca thuong
tranh cua » doanh cua, manh cua
tran chau » tranh chap, tran huu
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
con tan » con than, con tap, con ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu nganh - hanh tranh cua thuong ((con tan) OR (cong tan)) tran chau~".
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - hanh tranh cua thuong ((con tan) OR (cong tan)) tran chau*.