Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong tinh » cong trinh, cong vinh, long tinh
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: doi ((chieu sach) or (chieu tinh)) - ((thanh trung) or (canh tranh)) cua nhung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - ((thanh trung) OR (canh tranh)) cua nhung cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - ((thanh trung) or (canh tranh)) cua nhung cong tinh toan ban*.