Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
minh trang » tinh trang, minh hoang, minh tuan
hien sach » dien sach, kien sach, thien hach
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 sach - ((minh trang) OR (canh tranh)) va nhung cong dan phan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - ((minh trang) or (canh tranh)) va nhung cong dan phan cau*.