Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu manh » chieu xanh, hieu nganh, hien hanh
tranh cua » doanh cua, manh cua
dong cong » duong cong, dang cong, cong cong
dung cong » dung trong
doan cap » doanh cao, dan ca, toan cao
ty doan » ty doanh, tap doan, ly doanh

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 manh) OR (dieu hanh)) - hanh tranh cua ((dong cong) or (dung cong)) ty doan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (dieu hanh)) - hanh tranh cua ((dong cong) OR (dung cong)) ty doan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (dieu hanh)) - hanh tranh cua ((dong cong) or (dung cong)) ty doan cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (dieu hanh)) - hanh tranh cua ((dong cong) or (dung cong)) ty doan cap*.