Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
dong cong » duong cong, dung cong, cong cong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
tran cau » tran chau, toan cau, ran cau

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 ((dung cua) or (trung tuan)) ((dong cong) or (dang cong)) tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((dung cua) OR (trung tuan)) ((dong cong) OR (dang cong)) tan tran cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((dung cua) or (trung tuan)) ((dong cong) or (dang cong)) tan tran cau*.