Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thanh luc » thanh luu, than luc, nhan luc
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
va thanh » gia thanh, ban thanh, va tinh
nang ma » tang ma, sang ma, nang cao
vu nang » vuc nang, va nang, vu dang
va hanh » van hanh, va danh, ban hanh
te sach » toc sach
tu sach » thu sach, su sach, tu cach
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc 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: ((tu sach) OR (te sach)) vu nang ma hoi. lieu va thanh luc va hanh vai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) vu nang ma hoi. lieu va thanh luc va hanh vai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) vu nang ma hoi. lieu va thanh luc va hanh vai ((cua triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) vu nang ma hoi. lieu va thanh luc va hanh vai ((cua triet) or (su triet))*.