Perhaps you should try some spelling variations:
doanh thong » doanh thuong, doanh tong, doanh trong
long toan » bong toan, cong toan, long doan
thong hoc » thuong hoc, tuong hoc, thong hoa
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
cuu long » cuu cong, cuu tong, cuu nang
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao
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 (sach hoi)) tap, nghien cuu long toan doanh thong hoc xa hoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoc) OR (sach hoi)) tap, nghien cuu long toan doanh thong hoc xa hoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) or (sach hoi)) tap, nghien cuu long toan doanh thong hoc xa hoi va nhan va*.