Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
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
thong van » trong van, thong va, thong quan
toan tai » toan tap, doanh tai, toan ban
hang tai » hang va, dung tai
han tai » nhan tai, van tai, nhan tao

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 thong van ((han tai) or (((toan tai) or (hang tai))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu qua - hanh doanh cua khong thong van ((han tai) OR (((toan tai) OR (hang tai)))).
• Adding a wildcard symbol may retrieve word variants: theo hieu qua - hanh doanh cua khong thong van ((han tai) or (((toan tai) or (hang tai))))*.