Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
van hieu » cao hieu
doanh vi » doanh va, doan vi, doanh vien
cua tre » cua te, cuu tre, cua triet
ky lang » ky nang, ky dang, ky tang
van hoe » van hoa, van hoc, van hien
hieu ve » hieu va, hieu van
cam cuu » cham cuu
vi cua » vai cua, di cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky lang ((van hoe) or (van hieu)). hieu ve ((cam cuu) or (cap cuu)) ban doanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang ((van hoe) OR (van hieu)). hieu ve ((cam cuu) OR (cap cuu)) ban doanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu san ky lang ((van hoe) or (van hieu)). hieu ve ((cam cuu) or (cap cuu)) ban doanh vi cua tre*.