Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
triet tinh » trieu tinh, trien tinh, trien kinh
doanh luan » doanh nhan
mon triet » minh triet, bo triet, mao triet
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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: mon triet tinh - doanh doanh luan van ((cong tan) OR (cong san)) toan cau~.
• Adding a wildcard symbol may retrieve word variants: mon triet tinh - doanh doanh luan van ((cong tan) or (cong san)) toan cau*.