Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
hanh doanh » hang doanh, doanh doanh, kinh doanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu quan » hieu qua, lieu quan, thien quan
cua thong » cua thuong, cua khong, cua tong
thong van » trong van, thong va, thong quan
hang tai » hang va, dung tai
han tai » nhan tai, van tai, toan 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 quan - ((hanh doanh) OR (chinh doanh)) cua thong thong van ((han tai) or (hang tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu quan - ((hanh doanh) OR (chinh doanh)) cua thong thong van ((han tai) OR (hang tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu quan - ((hanh doanh) OR (chinh doanh)) cua thong thong van ((han tai) or (hang tai))".
• Adding a wildcard symbol may retrieve word variants: theo hieu quan - ((hanh doanh) OR (chinh doanh)) cua thong thong van ((han tai) or (hang tai))*.