Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nganh khang » nganh khong, ngan hang, nhanh thang
hoc nganh » hoc nhanh
kon mach » ke mach, ban mach
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc va » thuc va, thuoc ma, thuong va
nhan dan » phan dau, gian dan, nhan tai
kon anh » dong anh, hong anh, toan anh
va hoc » van hoc
hoc ca » hoc cao, hoc cua, hoc cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((kon anh) or (kon mach)) hoc tap, nghien cuu dong hoc nganh khang thuoc va hoc ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((kon anh) OR (kon mach)) hoc tap, nghien cuu dong hoc nganh khang thuoc va hoc ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: ((kon anh) or (kon mach)) hoc tap, nghien cuu dong hoc nganh khang thuoc va hoc ca nhan dan*.