Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
cach hoc » cach thuc, dich hoc, cac hop
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
hoc danh » hoc dan, hoc anh, hoc hanh
nhan dan » phan dau, gian dan, nhan tai
ma hoc » va hoc, ma hoa, mo hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach hoc) or (cach thoi)) tap, nghien cuu dong hoc nganh hoa hoc ma hoc danh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach hoc) OR (cach thoi)) tap, nghien cuu dong hoc nganh hoa hoc ma hoc danh nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) or (cach thoi)) tap, nghien cuu dong hoc nganh hoa hoc ma hoc danh nhan dan*.