Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach duoc » sach nuoc, sach dao, sach dung
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
cac nhan » ca nhan, cac nha, cam nhan
nhan van » nhan dan, nhan va, phan van
hoi cac » hoc cac, voi cac, hoa cac
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 duoc) or (mach hoc)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach duoc) OR (mach hoc)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac nhan van.
• Adding a wildcard symbol may retrieve word variants: tu ((sach duoc) or (mach hoc)) tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac nhan van*.