Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
cham luc » cham soc, nhan luc, cham cuu
ky lang » ky dang, ky tang, tay lang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
luc van » luoc van, luu van, duc van
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve cac ((ky lang) or (ky nang)) xa hoi. hieu va cham luc van doanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cac ((ky lang) OR (ky nang)) xa hoi. hieu va cham luc van doanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ve cac ((ky lang) or (ky nang)) xa hoi. hieu va cham luc van doanh tai cua tre*.