Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu xanh » chieu sach, chieu sang, chieu tinh
thien anh » thien danh, tien anh, thien thanh
tranh cua » doanh cua, manh cua
cua trong » cua truong, cua trung, qua trong
cong tac » cong ty
toan ban » van ban

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 ((thien anh) OR (chieu xanh)) - hanh tranh cua trong cong tac ((toan tap) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (chieu xanh)) - hanh tranh cua trong cong tac ((toan tap) or (toan ban))*.