Perhaps you should try some spelling variations:
danh doanh » doanh doanh, hanh doanh, van doanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo

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 ky lang xa hoi. hieu ve cham soc ((danh doanh) or (kinh doanh)) tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. hieu ve cham soc ((danh doanh) OR (kinh doanh)) tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. hieu ve cham soc ((danh doanh) or (kinh doanh)) tai cuu tre*.