Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
dang luan » dung luan, tang luan, hang luan
thu sach » tu sach, thuat sach, thuoc sach
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
hai dang » hai bang, dai dang, hoi dang
te sach » toc sach
luan va » luan van, luat va
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (te sach)) hoc tap, nghien cuu dong hoc nganh khoa hoc xa hai dang luan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) hoc tap, nghien cuu dong hoc nganh khoa hoc xa hai dang luan va.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) hoc tap, nghien cuu dong hoc nganh khoa hoc xa hai dang luan va*.