Perhaps you should try some spelling variations:
danh doanh » doanh doanh, hanh doanh, kinh doanh
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
soc danh » hoc danh, so danh, soc dan
lang xa » lang ha, dang xay, lang van
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
sac ky » sai 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 ((sac ky) or (cac ky)) lang xa hoi. hieu van cham soc danh doanh tai ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) lang xa hoi. hieu van cham soc danh doanh tai ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) lang xa hoi. hieu van cham soc danh doanh tai ((cuu tre) or (cua tre))*.