Perhaps you should try some spelling variations:
khien canh » thien chanh, hien hanh, bien canh
hien nhanh » hien hanh, thien thanh, tien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong vang » cong lang, cong quang, cong ngang
vang than » sang than, van than, cang thang
than cau » toan cau, phan cau, than cap

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: hoc ((((khien canh) OR (hien nhanh))) OR (chieu xanh)) - hanh trung cua thong cong vang than cau~.
• Adding a wildcard symbol may retrieve word variants: hoc ((((khien canh) or (hien nhanh))) or (chieu xanh)) - hanh trung cua thong cong vang than cau*.