Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cham duc » pham duc, cham soc, pham duy
va doanh » van doanh, vay doanh, va danh
te sach » toc sach
vu nang » vuc nang, va nang, vu dang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
v nang » va nang, van nang, voi nang
x hoi » xa hoi, o hoi, x ho

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

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