Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, dung cong
hang cong » dang cong, hang nong, thanh cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, mot chieu
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - hanh tranh cua ((bang cong) OR (hang cong)) manh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sang - hanh tranh cua ((bang cong) or (hang cong)) manh toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sang - hanh tranh cua ((bang cong) or (hang cong)) manh toan cau*.