Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
phong cong » phong chong, thong cong, chong cong
doi chieu » doc hieu, doi chi, ho chieu
trung cuc » trung cua, trung luc, truong cuoc
thanh lap » thanh san, phan lap, thanh hai
than cap » khan cap, thanh cac, than cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh trung cuc ((phuong hoang) or (phong cong)) dan ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh trung cuc ((phuong hoang) OR (phong cong)) dan ((than cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh trung cuc ((phuong hoang) or (phong cong)) dan ((than cap) or (thanh lap))*.