Perhaps you should try some spelling variations:
nghien cau » nghien cuu, nghiep cau, nghiep can
nghiep cay » nghiep chan, nghiep va, nghiep cua
nganh khoa » nganh hoa, nganh khong, doanh khoa
benh hoc » sinh hoc
ve nganh » va nganh, vien nganh, voi nganh
khoa hoc » hoa hoc
tu benh » tru benh, thu benh, tuy benh
hang ve » hang va, hanh ve, hang ke
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
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: tu benh hoc tap, ((nghien cau) or (nghiep cay)) hang ve nganh khoa hoc xa hoi ca nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu benh hoc tap, ((nghien cau) OR (nghiep cay)) hang ve nganh khoa hoc xa hoi ca nhan va.
• Adding a wildcard symbol may retrieve word variants: tu benh hoc tap, ((nghien cau) or (nghiep cay)) hang ve nganh khoa hoc xa hoi ca nhan va*.