Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
dang xay » dang van, van xay
hanh de » hanh ve, hanh kem
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
qua cac » cua cac
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
luc 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: so sach ky dang xay hoi. hieu qua cac ((luc va) or (duc va)) hanh de ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky dang xay hoi. hieu qua cac ((luc va) OR (duc va)) hanh de ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ky dang xay hoi. hieu qua cac ((luc va) or (duc va)) hanh de ((cua triet) or (su triet))*.