Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
vien nganh » vien thanh
thiet qua » thien quan, hieu qua, thien quy
dinh cuu » dinh chi
hoc vien » hoc hien, hoc viet, hoc tieng
dinh cu » dinh chuc, dinh chau, dinh chi
viet ha » viet nam
ha hoc » hoa hoc, nha hoc, va 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 thiet qua ((dinh cuu) or (dinh cu)) nguoi viet ha hoc vien nganh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh thiet qua ((dinh cuu) OR (dinh cu)) nguoi viet ha hoc vien nganh.
• Adding a wildcard symbol may retrieve word variants: giao trinh thiet qua ((dinh cuu) or (dinh cu)) nguoi viet ha hoc vien nganh*.