Perhaps you should try some spelling variations:
trang luan » tang luan, trang tuan, truong luan
tranh luan » trinh luan, trinh luat, doanh luan
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo tieu)) tinh - hanh ((trang luan) OR (tranh luan)) bang cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo tieu)) tinh - hanh ((trang luan) OR (tranh luan)) bang cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo tieu)) tinh - hanh ((trang luan) OR (tranh luan)) bang cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo tieu)) tinh - hanh ((trang luan) OR (tranh luan)) bang cong san than cau*.