Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
thiet luat » hieu luat, hien luat, chiet xuat
hien quan » thien quan, lien quan, vien quan
tien huan » hien huan, tien duan, tieu chuan
danh cua » doanh cua, dinh cua, dan cua
manh cua » doanh cua, ban cua
viet dai » vien dai, viet da, viet dao

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 thiet luat ((danh cua) OR (manh cua)) nguoi viet dai hoc ((hien quan) or (tien huan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh thiet luat ((danh cua) OR (manh cua)) nguoi viet dai hoc ((hien quan) OR (tien huan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao trinh thiet luat ((danh cua) OR (manh cua)) nguoi viet dai hoc ((hien quan) or (tien huan))".
• Adding a wildcard symbol may retrieve word variants: giao trinh thiet luat ((danh cua) OR (manh cua)) nguoi viet dai hoc ((hien quan) or (tien huan))*.