Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
thuoc sach » hoc sach, nuoc sach, thuoc sinh
thuat sach » thuat lanh, thuat san
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoa nganh » hoc nganh, khoi nganh, hoa doanh
khong hoc » khung hoc, thong hoc, khong thuoc
cong hoa » dong hoa, dong hoc, hang hoa
nhan van » nhan dan, nhan va, phan van
hoc dai » hoc dan
dai hoi » dai hoc, dai hai, dai moi
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) OR (thuat sach)) hoc tap, nghien cua cong hoa nganh khong hoc dai hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (thuat sach)) hoc tap, nghien cua cong hoa nganh khong hoc dai hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (thuat sach)) hoc tap, nghien cua cong hoa nganh khong hoc dai hoi va nhan van*.