Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
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
thuoc va » thuc va, thuong va, thuoc tai
thuoc ma » hoc ma, duoc ma
nhan dan » phan dau, gian dan, nhan tai
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 ((thuoc va) OR (thuoc ma)) hoi ca nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "kon mach hoc tap, nghien cuu dong hoc nganh khong ((thuoc va) OR (thuoc ma)) hoi ca nhan dan".
• Adding a wildcard symbol may retrieve word variants: kon mach hoc tap, nghien cuu dong hoc nganh khong ((thuoc va) OR (thuoc ma)) hoi ca nhan dan*.