Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thieu manh » tien manh, trieu minh, chieu xanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tran dung » tran dang, tran hung, tran quang
tan dung » tin dung, van dung, dan dung
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: hoc ((thieu manh) OR (hieu manh)) - hanh trang ((tan dung) OR (tran dung)) cong san toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) or (hieu manh)) - hanh trang ((tan dung) OR (tran dung)) cong san toan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) or (hieu manh)) - hanh trang ((tan dung) OR (tran dung)) cong san toan cao*.