Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
dung cong » dung trong
theo cap » theo phap, pho cap, theo chu
dung cua » dung cho
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: ((theo cap) OR (theo chieu)) tinh - hanh ((dung cua) OR (dung luan)) dung cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo cap) or (theo chieu)) tinh - hanh ((dung cua) OR (dung luan)) dung cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((theo cap) or (theo chieu)) tinh - hanh ((dung cua) OR (dung luan)) dung cong tan toan cau*.