Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
dung huong » dung thuong, dung phuong, dong huong
trung ap » trung cap, trung lap, trung tam
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat
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 xanh) OR (chieu sach)) - hanh trung ap dung huong ((dan than) OR (dan chan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sach)) - hanh trung ap dung huong ((dan than) OR (dan chan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - hanh trung ap dung huong ((dan than) OR (dan chan)) cau*.