Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
thiet luat » hieu luat, hien luat, chiet xuat
luat dan » luat dat, luat doanh, cua dan
nhan hoc » than hoc, nhan thuc, nhan khoa
nhan hoa » nhan khoa, phan hoa, thanh hoa
dan cua » dan ca, ban cua, dai cua
nha hoc » nha thuoc, khoa hoc, nha nuoc

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: giao trinh thiet luat dan cua nguoi viet ((((nhan hoc) OR (nha hoc))) OR (nhan hoa)) tieng anh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao trinh thiet luat dan cua nguoi viet ((((nhan hoc) OR (nha hoc))) or (nhan hoa)) tieng anh~".
• Adding a wildcard symbol may retrieve word variants: giao trinh thiet luat dan cua nguoi viet ((((nhan hoc) OR (nha hoc))) or (nhan hoa)) tieng anh*.