Perhaps you should try some spelling variations:
trinh dieu » trinh dien, tinh dieu, trinh dinh
dieu luat » hieu luat, hieu suat, dieu cua
luat canh » luat doanh, luat kinh, luc canh
viet chat » viet cham, viet chau, viet nhat
hien hanh » dieu hanh
ca nguoi » va nguoi, cho nguoi, con nguoi
chat hoc » chat hoa, chat thom, cho hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao trinh dieu luat canh ((ca nguoi) OR (cua nguoi)) viet chat hoc hien hanh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao trinh dieu luat canh ((ca nguoi) OR (cua nguoi)) viet chat hoc hien hanh".
• Adding a wildcard symbol may retrieve word variants: giao trinh dieu luat canh ((ca nguoi) OR (cua nguoi)) viet chat hoc hien hanh*.