Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
doanh khoa » toan khoa
sach moi » sach doi, sach hoi, bach mai
moi trac » hoi trac, roi rac, thi trac
cuu dong » cuu cong, cuu tong, cuu long
dong hoa » dong hoc, dong co
tu sach » thu sach, su sach, te sach
va luan » vay luan, van luan, va quan
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: tu sach moi trac, nghien cuu dong hoa ((nganh khong) or (doanh khoa)) hoc xa hoi va luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach moi trac, nghien cuu dong hoa ((nganh khong) OR (doanh khoa)) hoc xa hoi va luan van.
• Adding a wildcard symbol may retrieve word variants: tu sach moi trac, nghien cuu dong hoa ((nganh khong) or (doanh khoa)) hoc xa hoi va luan van*.