Perhaps you should try some spelling variations:
trinh hieu » trinh dieu, trinh thiet, trinh nhiet
thuoc vien » thuoc viet, thuoc phien, hoc vien
vien nhan » vien than, trien nhan, vien nganh
dinh cua » sinh cua, dinh cu, tinh cua
dinh cuu » dinh chi
ha thuoc » nha thuoc, va thuoc, ha thuc
viet ha » viet nam

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 qua ((dinh cua) or (dinh cuu)) nguoi viet ha thuoc vien nhan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh hieu qua ((dinh cua) OR (dinh cuu)) nguoi viet ha thuoc vien nhan.
• Adding a wildcard symbol may retrieve word variants: giao trinh hieu qua ((dinh cua) or (dinh cuu)) nguoi viet ha thuoc vien nhan*.