Perhaps you should try some spelling variations:
doanh tranh » doanh thanh, canh tranh, doanh doanh
hien hanh » dieu hanh
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
hien anh » thien anh, dien anh, tien anh
cua hang » cua dang, cua nhung, cua cong
tu phan » thu phan, tu nhan, su phan
tu phat » su phat, te phat, xu phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien anh) or (hien hanh)) - doanh tranh cua hang cong ((tu phan) or (tu phat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (hien hanh)) - doanh tranh cua hang cong ((tu phan) OR (tu phat)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (hien hanh)) - doanh tranh cua hang cong ((tu phan) or (tu phat)) cau*.