Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
chuc danh » chuc nganh, thuc hanh, chuc nang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
vinh toan » tinh toan, hinh toan, vinh tran
minh toan » tinh toan, manh toan, minh tuan
tang cua » mang cua, hang cua, tang luan

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: theo ((chuc danh) OR (chieu xanh)) - hanh tang cua nhung cong ((vinh toan) OR (minh toan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chieu xanh)) - hanh tang cua nhung cong ((vinh toan) OR (minh toan)) tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chieu xanh)) - hanh tang cua nhung cong ((vinh toan) OR (minh toan)) tap*.