Perhaps you should try some spelling variations:
thong phuong » thuong phuong, thong thuong, thong huong
phuong tran » huong tran, phuong trinh, phuong thao
theo chieu » theo chu, thi chieu
hanh luan » khanh luan, hang luan, hanh luat
van thong » van thuong, van phong, va thong
tran toan » tranh toan, tran tuan, tran tan
ho chieu » hoc thieu, doi chieu, mot chieu
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 chieu) OR (ho chieu))) or (theo tieu)) sach - hanh luan van thong phuong tran toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((theo chieu) OR (ho chieu))) OR (theo tieu)) sach - hanh luan van thong phuong tran toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((theo chieu) OR (ho chieu))) or (theo tieu)) sach - hanh luan van thong phuong tran toan cau".
• Adding a wildcard symbol may retrieve word variants: ((((theo chieu) OR (ho chieu))) or (theo tieu)) sach - hanh luan van thong phuong tran toan cau*.