Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
cua nhan » ca nhan, cua ngan, cua nha
nhan dau » phan dau, nhan dan, han dau
hoi cua » hoi chuc
mo hoc » mon hoc, co hoc
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) or (cach thoi)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cua nhan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (cach thoi)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cua nhan dau.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (cach thoi)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cua nhan dau*.