Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
chieu sang » chieu sach, chieu xanh, hieu lang
chau tinh » cuu tinh, ha tinh, cua tinh
trung cap » truong cao, trung tam
cap hang » cap hoang, cap bang, cap han
cong tac » cong ty
chan cau » phan cau, can cau, chinh cau

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: ho ((chieu sang) OR (chau tinh)) - hanh trung cap hang ((cong san) OR (cong tac)) chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chau tinh)) - hanh trung cap hang ((cong san) OR (cong tac)) chan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chau tinh)) - hanh trung cap hang ((cong san) OR (cong tac)) chan cau*.