Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh nong » nganh cong
thanh phan » thanh pho, thanh san, thanh toan
hoc nganh » hoc nhanh
thanh van » thanh san, thanh toan, thanh nhan
sach hoi » sach doi, sach moi, cach thoi
cong hoc » dong hoc, cong hoa, cong coc
nong hoc » dong hoc, nang hoc, nong thon
su sach » so sach, vu sach
hoi tap » hoi dap, hoc tap, hoi tai
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach hoi tap, nghien thu cong hoc nganh nong hoc xa hoi van ((thanh van) or (thanh phan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoi tap, nghien thu cong hoc nganh nong hoc xa hoi van ((thanh van) OR (thanh phan)).
• Adding a wildcard symbol may retrieve word variants: su sach hoi tap, nghien thu cong hoc nganh nong hoc xa hoi van ((thanh van) or (thanh phan))*.