Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
cuu long » cuu cong, cuu tong, cuu nang
long hoc » dong hoc, long soc, long thuoc
cong hoc » dong hoc, cong hoa, cong coc
nhan dan » phan dau, gian dan, nhan tai
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach hoc) OR (sach hoi)) tap, nghien cuu long hoc nganh cong hoc xa hoi ca nhan dan~".
• Adding a wildcard symbol may retrieve word variants: su ((sach hoc) OR (sach hoi)) tap, nghien cuu long hoc nganh cong hoc xa hoi ca nhan dan*.