Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuc » khong thuoc, khong chuc, phong thuc
hoc nganh » hoc nhanh
kon mach » ke mach, ban mach
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
phan dau » hang dau
thuc va » thuc vat, thuc dan, thuc day
va hoi » xa hoi, va hoc, va hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: kon mach hoc tap, nghien cuu dong hoc nganh khong thuc va hoi ca ((phan dau) OR (phan tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "kon mach hoc tap, nghien cuu dong hoc nganh khong thuc va hoi ca ((phan dau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: kon mach hoc tap, nghien cuu dong hoc nganh khong thuc va hoi ca ((phan dau) OR (phan tu))*.