Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
hien xanh » hien hanh, hien nhanh, chieu xanh
hung cong » nhung cong, hung cuong, phung cong
van hung » van dung, manh hung, van duong
cong dan » cong san, cong tan, huong dan
khan cap » khan ap, than cap, khoan cam
phan cam » phan cac, phan cau, khoan cam

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 xanh - tranh luan van hung cong dan ((khan cap) OR (phan cam))~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - tranh luan van hung cong dan ((khan cap) or (phan cam))*.