Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nganh khang » nganh khong, ngan hang, nhanh thang
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoa nganh » hoc nganh, khoi nganh, hoa doanh
dich hoc » sinh hoc, hinh hoc, kinh hoc
tinh hoc » sinh hoc, tin hoc, hinh hoc
cong hoa » dong hoa, dong hoc, hang hoa
thuoc va » thuc va, thuoc ma, thuong va
ca luan » cu luan, ca lua, ca quan
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 ((dich hoc) or (tinh hoc)) tap, nghien cua cong hoa nganh khang thuoc va hoi ca luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: kon ((dich hoc) OR (tinh hoc)) tap, nghien cua cong hoa nganh khang thuoc va hoi ca luan van.
• Adding a wildcard symbol may retrieve word variants: kon ((dich hoc) or (tinh hoc)) tap, nghien cua cong hoa nganh khang thuoc va hoi ca luan van*.