Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dan vai » dan tai, dan vat, den vai
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, tu cach
te sach » toc sach
dan va » doan va, dan ca, ban va
x hoi » xa hoi, o hoi, x ho
ve am » va am

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) OR (te sach)) ky nang x hoi. hieu ve am thuc va ((dan vai) OR (dan va)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. hieu ve am thuc va ((dan vai) OR (dan va)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu ve am thuc va ((dan vai) OR (dan va)) cua triet*.