Perhaps you should try some spelling variations:
chung trong » cung trong, chung thong, hung trong
trong thanh » truong thanh, trung thanh, rong thanh
chieu sach » chinh sach, chiet tach, chieu sang
trinh toan » tinh toan, trinh quan, trinh hoa
thanh toan » thanh hoa, thanh san, tinh toan
trinh han » trinh quan
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: mot chieu sach - hanh ((trinh toan) OR (trinh han)) chung trong thanh toan cao~.
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - hanh ((trinh toan) or (trinh han)) chung trong thanh toan cao*.