Perhaps you should try some spelling variations:
nguong dan » huong dan
hanh dong » anh dong, ha dong
dong luan » dung luan, tong luan, dong xuan
luan nang » luan van, van nang, luan san
hien anh » hien hanh, thien anh, dien anh
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - hanh dong luan nang ((nguong dan) or (cong dan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - hanh dong luan nang ((nguong dan) OR (cong dan)) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - hanh dong luan nang ((nguong dan) or (cong dan)) phan cau*.