Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoc nhanh » hoc phan
danh nhan » doanh nhan, thanh nhan, benh nhan
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
so mach » so sach, tao mach, kon mach
hoc mau » hoc ma, hoc may, hoc mac
mau hop » mau ho, mau chot

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so mach hoc tap, nghien thu cong ((hoc nganh) OR (hoc nhanh)) khoa hoc mau hop danh nhan van~".
• Adding a wildcard symbol may retrieve word variants: so mach hoc tap, nghien thu cong ((hoc nganh) OR (hoc nhanh)) khoa hoc mau hop danh nhan van*.