Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhu phuong » thu phuong, nhung phuong, thi phuong
phuong dan » phuong danh, phuong doan, huong dan
hien hanh » dieu hanh
quang cua » quan cua, quang tuan, quang huy
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
cua nhu » cua nhua, cua chu, cua nha

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 ((hien hanh) OR (chieu xanh)) - nhanh quang cua nhu phuong dan than cao~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (chieu xanh)) - nhanh quang cua nhu phuong dan than cao*.