Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
sach duoc » sach nuoc, sach dao, sach dung
hoc nhanh » hoc nganh, hoc phan
sach hoi » sach doi, sach moi, cach thoi
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
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 (sach hoi)) tap, nghien cuu mon hoc nhanh khoa hoc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach duoc) OR (sach hoi)) tap, nghien cuu mon hoc nhanh khoa hoc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu ((sach duoc) or (sach hoi)) tap, nghien cuu mon hoc nhanh khoa hoc xa hoi va nhan dan*.