Perhaps you should try some spelling variations:
doanh khoa » toan khoa
cach thoi » cac thoi, cach thuc, cach noi
soc doanh » so doanh, hoa doanh, voi doanh
nang quan » ban quan, nang suat
sach hoi » sach doi, sach moi, hoach hoi
cuu long » cuu cong, cuu tong, cuu nang
long soc » lon soc, luong suc, cong so
khoa hoc » hoa hoc
thi nang » thi cong, ki nang, thi hanh
quan van » luan van, quan va, quan luan
ma thi » mai thi, may thi, ha thi

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: "thu ((sach hoi) OR (cach thoi)) tap, nghien cuu long soc doanh khoa hoc ma thi nang quan van~".
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoi) OR (cach thoi)) tap, nghien cuu long soc doanh khoa hoc ma thi nang quan van*.