Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
phuong lan » phuong la, thuong lan, phuong linh
trung cua » truong cua, trung tuan, trung cap
thanh vac » thanh van, thanh bac, thanh cac
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban
thanh va » thanh van, hanh va, thanh ha

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 dang ((phuong lan) or (phung van)) ((thanh va) or (thanh vac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung cua dang ((phuong lan) OR (phung van)) ((thanh va) OR (thanh vac)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua dang ((phuong lan) or (phung van)) ((thanh va) or (thanh vac))*.