Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan luc » nang luc
hanh dan » thanh dan, hanh san, canh dan
kho tang » cao tang
hieu van » hieu va, thien van, lieu va
dan cua » dan ca, ban cua, dai cua
va hanh » van hanh, va thanh, va danh
su sach » vu sach
tang xa » trang xa, tang ma, lang xa
so sach » so sanh, bo sach, co sach
nam luc » nang luc, nam thuc, nam duoc

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: ((su sach) OR (so sach)) kho tang xa hoi. hieu van ((nam luc) OR (nhan luc)) va hanh dan cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) kho tang xa hoi. hieu van ((nam luc) OR (nhan luc)) va hanh dan cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) kho tang xa hoi. hieu van ((nam luc) OR (nhan luc)) va hanh dan cua triet*.