Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
tang luan » dung luan
theo thu » theo chu, theo tu, thi thu
mang cua » manh cua, dung cua, ban cua
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 thu) OR (theo tieu)) sach - hanh ((mang cua) or (tang luan)) trung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo thu) OR (theo tieu)) sach - hanh ((mang cua) OR (tang luan)) trung cong san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo thu) OR (theo tieu)) sach - hanh ((mang cua) or (tang luan)) trung cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo thu) OR (theo tieu)) sach - hanh ((mang cua) or (tang luan)) trung cong san toan cao*.