Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc doanh » hoa doanh, hoc danh, hoc dan
thoi dai » hoc dai, hoi dap, hoi dan
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
tu cach » tu cac
ca luan » cu luan, ca lua, ca quan
hoi ca » hoi cua, hoi cac, hoi cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thoi dai, nghien cuu tong hoc doanh ((khoa hoc) OR (hoa hoc)) xa hoi ca luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thoi dai, nghien cuu tong hoc doanh ((khoa hoc) OR (hoa hoc)) xa hoi ca luan van".
• Adding a wildcard symbol may retrieve word variants: tu cach thoi dai, nghien cuu tong hoc doanh ((khoa hoc) OR (hoa hoc)) xa hoi ca luan van*.