Perhaps you should try some spelling variations:
trinh nhiet » trinh thiet, trinh nghien, trinh viet
trinh hieu » trinh dieu, trinh thiet, trinh thien
luat danh » luat doanh, luat dan, luat canh
hien quan » thien quan, lien quan, vien quan
tien huan » hien huan, tien duan, tieu chuan
danh cua » doanh cua, manh cua, dinh 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 hieu) OR (trinh nhiet)) luat danh 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 hieu) OR (trinh nhiet)) luat danh 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 hieu) OR (trinh nhiet)) luat danh cua nguoi viet dai hoc ((hien quan) or (tien huan))".
• Adding a wildcard symbol may retrieve word variants: giao ((trinh hieu) OR (trinh nhiet)) luat danh cua nguoi viet dai hoc ((hien quan) or (tien huan))*.