Perhaps you should try some spelling variations:
nganh khang » nganh khong, ngan hang, nhanh thang
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nganh » hoc nhanh
mach hoc » cach hoc, anh hoc, bac hoc
dich hoc » sinh hoc, hinh hoc, tinh hoc
huu dung » huu tung, huu quang, thuy dung
dung hoc » dong hoc, dung thuoc, trung hoc
thuoc va » thuc va, thuoc ma, thuong va
phap vat » phap luat, phap phat, phap viet
va phap » va phat, ban phap
va hoi » xa hoi, va hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((mach hoc) OR (dich hoc)) tap, nghien huu dung hoc nganh khang thuoc va hoi va phap vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((mach hoc) OR (dich hoc)) tap, nghien huu dung hoc nganh khang thuoc va hoi va phap vat".
• Adding a wildcard symbol may retrieve word variants: su ((mach hoc) OR (dich hoc)) tap, nghien huu dung hoc nganh khang thuoc va hoi va phap vat*.