Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
doi chieu » doc hieu, ho chieu, mot chieu
trung ap » trung cap, trung lap, trung tam
cong dan » cong san, cong tan, cong dong
than cau » toan cau, phan cau, than cap
doi chi » doi khi
ap dung » xay dung, van dung

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: ((doi chieu) OR (doi chi)) xanh - hanh trung ap dung ((cong dan) OR (huong dan)) than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) xanh - hanh trung ap dung ((cong dan) or (huong dan)) than cau~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) xanh - hanh trung ap dung ((cong dan) or (huong dan)) than cau*.