Perhaps you should try some spelling variations:
trinh vien » trinh viet, trinh dien, trinh bien
vien quan » lien quan, van quan, tin quan
quan manh » quang manh, quan hanh, quan thanh
vien nhan » vien than, trien nhan, vien nganh
dien nhan » dien phan, dien han, dien nha
manh cua » doanh cua, ban cua
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 vien quan manh cua nguoi viet ha hoc ((vien nhan) OR (dien nhan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "giao trinh vien quan manh cua nguoi viet ha hoc ((vien nhan) OR (dien nhan))".
• Adding a wildcard symbol may retrieve word variants: giao trinh vien quan manh cua nguoi viet ha hoc ((vien nhan) OR (dien nhan))*.