Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
cua trung » cua truong, xuan trung, cua nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, song van
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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 xanh) OR (chieu xanh)) - anh tang cua trung cong van ((tuan cau) OR (tuan cu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (chieu xanh)) - anh tang cua trung cong van ((tuan cau) OR (tuan cu))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu xanh)) - anh tang cua trung cong van ((tuan cau) OR (tuan cu))*.