Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
hanh doanh » hang doanh, chinh doanh, doanh doanh
theo hieu » theo chieu, theo tieu, thien hieu
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
trong van » trong cac
nnhan tao » nhan tai, nhan tam
nhan tao » nhan tai, nhan dan
hang tai » hang va, dung tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu qua - hanh doanh cua khong trong van ((nhan tao) or (((nnhan tao) or (hang tai))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu qua - hanh doanh cua khong trong van ((nhan tao) OR (((nnhan tao) OR (hang tai)))).
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - hanh doanh cua khong trong van ((nhan tao) or (((nnhan tao) or (hang tai))))*.