Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
trung cua » truong cua, trung tuan, trung cap
tang cua » mang cua, hang cua, tang luan
toan ban » van ban

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 sach - hanh ((trung cua) or (tang cua)) phuong cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((trung cua) OR (tang cua)) phuong cong thanh toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((trung cua) or (tang cua)) phuong cong thanh toan ban*.