Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nhanh khoa » nganh khoa, hang khoa, doanh khoa
nhan khoa » nha khoa, khuan khoa, toan khoa
sach dao » lanh dao
cac dong » cac duong, cac cong, cac dang
dong hoa » dong hoc, dong co
nhan dan » phan dau, gian dan, nhan tai
su sach » so sach, vu sach
dao tap » dao tao, dao tay, dao gap
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: su sach dao tap, nghien cac dong hoa ((nhanh khoa) or (nhan khoa)) hoc xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach dao tap, nghien cac dong hoa ((nhanh khoa) OR (nhan khoa)) hoc xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: su sach dao tap, nghien cac dong hoa ((nhanh khoa) or (nhan khoa)) hoc xa hoi ca nhan dan*.