Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tran » hanh trang, thanh tran, thanh trang
hanh tram » hanh tam, hanh trang, thanh tran
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
vang tuan » van tuan, vong tuan, quang tuan
van dung » van dong, xay dung, tin dung
tuan cau » toan cau, quan cau, tuan cu

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 xanh) OR (chinh sach)) - ((hanh tran) OR (hanh tram)) van dung cong vang tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chinh sach)) - ((hanh tran) OR (hanh tram)) van dung cong vang tuan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chinh sach)) - ((hanh tran) OR (hanh tram)) van dung cong vang tuan cau*.