Perhaps you should try some spelling variations:
phuong hanh » phuong thanh, phuong anh, phuong danh
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
thanh chau » thanh cha, thanh cham, thanh chu
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
cua bang » chua bang, cua ban, cua dang
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: ho chieu sach - thanh trung cua bang phuong hanh ((thanh chau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung cua bang phuong hanh ((thanh chau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua bang phuong hanh ((thanh chau) or (toan cau))*.