Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
thuc dan » thuc hanh, hoc dan, thuc vat
sach ky » sac ky, sach y, sach ty
thuc va » thuc vat, thuc day
van cua » vang cua, ban cua, dan cua
tu sach » thu sach, su sach, te sach
va lam » van lam, va lap
va am » va cam
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((va am) OR (va lam)) ((thuc va) OR (thuc dan)) doanh van cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((va am) OR (va lam)) ((thuc va) or (thuc dan)) doanh van cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ((va am) OR (va lam)) ((thuc va) or (thuc dan)) doanh van cua triet*.