Perhaps you should try some spelling variations:
doanh khong » doanh thuong, doanh khoa, doanh chung
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoa doanh » toan doanh, hoa dan
khong hoc » khung hoc, thong hoc, khong thuoc
cach hoc » cach thuc, cach thoi, dich hoc
cong hoa » dong hoa, dong hoc, hang hoa
nhan van » nhan dan, phan van, nha van
tu cach » tu cac
nhan va » nhan tai, nhan dan, nhan tao
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 cach hoc tap, nghien cua cong hoa doanh khong hoc xa hoi va ((nhan van) OR (nhan va))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cua cong hoa doanh khong hoc xa hoi va ((nhan van) OR (nhan va))".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cua cong hoa doanh khong hoc xa hoi va ((nhan van) OR (nhan va))*.