Perhaps you should try some spelling variations:
doanh khoa » toan khoa
cach thuc » anh thuc, cac thu
hoc doanh » hoa doanh, hoc danh, hoc dan
cac thoi » cac toi, cac hop, cac tro
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
hoi van » hoi va, hoi dan, hai van
nhan va » nhan tai, nhan dan, nhan tao
cuu co » huu co, cua co, cuu mo
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 ((cac thoi) or (cach thuc)) dap, nghien cuu co hoc doanh khoa hoc xa hoi van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cac thoi) OR (cach thuc)) dap, nghien cuu co hoc doanh khoa hoc xa hoi van nhan va.
• Adding a wildcard symbol may retrieve word variants: tu ((cac thoi) or (cach thuc)) dap, nghien cuu co hoc doanh khoa hoc xa hoi van nhan va*.