Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van dung » van dong, xay dung, tin dung
dung dai » duong dai, dung tai, dung dat
sach ty » sach tu, sach thu, xach tay
qua cac » cua cac
mo hoc » mon hoc
cac tu » cac thu, cach tu, cac du
tu van » tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach y)) nang ((mo hoc) or (co hoc)). hieu qua cac tu van dung dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang ((mo hoc) OR (co hoc)). hieu qua cac tu van dung dai cua triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach y)) nang ((mo hoc) or (co hoc)). hieu qua cac tu van dung dai cua triet*.