Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chau tinh » cuu tinh, ha tinh, cac tinh
hanh tang » hanh trang, anh tang, hanh mang
cua tinh » cua sinh, va tinh, ha tinh
cong san » cong tac
toan cao » toan ban, toan tap
tang va » trang va, tang van, thang va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (cua tinh)) - hanh tang va thuong ((cong san) OR (cong thanh)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chau tinh) OR (cua tinh)) - hanh tang va thuong ((cong san) or (cong thanh)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: theo ((chau tinh) OR (cua tinh)) - hanh tang va thuong ((cong san) or (cong thanh)) toan cao*.