Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
hien hanh » dieu hanh
cua nhung » va nhung
anh nang » ganh nang, anh bang, anh sang
anh dang » anh dong, anh dung, anh bang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 sang)) - ((anh nang) OR (anh dang)) cua nhung cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien hanh) or (chieu sang)) - ((anh nang) OR (anh dang)) cua nhung cong dan than cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) or (chieu sang)) - ((anh nang) OR (anh dang)) cua nhung cong dan than cau*.