Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
cham luc » cham soc, nhan luc, cham cuu
hieu ve » hieu va, hieu van
van cua » vang cua, ban cua, dan cua
ve cham » va cham, ve chat, vu cham
tu sach » thu sach, su sach, te sach
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, may nang, day nang
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((((y nang) OR (ly nang))) or (v nang)) xa hoi. hieu ve cham luc va doanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((y nang) OR (ly nang))) OR (v nang)) xa hoi. hieu ve cham luc va doanh van cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((((y nang) OR (ly nang))) or (v nang)) xa hoi. hieu ve cham luc va doanh van cua tre*".