Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
theo lieu » theo chieu, theo yeu, thi lieu
dang cong » dung cong
dung cua » dung luan, dung cho
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo lieu) or (theo tieu)) tinh - hanh ((dung cua) or (trung tuan)) dang cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo lieu) OR (theo tieu)) tinh - hanh ((dung cua) OR (trung tuan)) dang cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo lieu) or (theo tieu)) tinh - hanh ((dung cua) or (trung tuan)) dang cong san toan cau*.