Perhaps you should try some spelling variations:
nhiem thuoc » nghiem thuoc, nhiem thuc, nhiem thuong
thuoc dong » thuoc dung, thuoc cong, thuoc dang
nganh nong » nganh cong
hoc nganh » hoc nhanh
danh luan » doanh luan, dan luan, tranh luan
sach hoc » sach hoi, mach hoc, sach duoc
cach hoc » cach thuc, cach thoi, dich hoc
dong hoc » dong co, dong luc
nong hoc » nang hoc, nong thon, duong hoc
roi danh » hoi danh, voi doanh, doi doanh
hoc lai » hoc dai, hoc bai, hoc lam
lai roi » lai hoi, loi roi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach hoc) OR (cach hoc)) tap, nhiem thuoc dong hoc nganh nong hoc lai roi danh luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (cach hoc)) tap, nhiem thuoc dong hoc nganh nong hoc lai roi danh luan van".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (cach hoc)) tap, nhiem thuoc dong hoc nganh nong hoc lai roi danh luan van*.