Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dan » thanh dan, hanh san, canh dan
kho tang » cao tang
van hanh » van thanh, ban hanh, van anh
hieu van » thien van, lieu va, hieu ve
nam xuc » cam xuc, nam xua, nam thuc
dan cua » dan ca, ban cua, dai cua
xuc van » duc van, luc van, vuc van
su sach » vu sach
hieu va » lieu va, hieu qua
tang xa » trang xa, tang ma, lang xa
so sach » so sanh, bo sach, co sach

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) or (so sach)) kho tang xa hoi. ((hieu van) OR (hieu va)) nam xuc van hanh dan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) kho tang xa hoi. ((hieu van) OR (hieu va)) nam xuc van 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) OR (hieu va)) nam xuc van hanh dan cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) kho tang xa hoi. ((hieu van) OR (hieu va)) nam xuc van hanh dan cua triet*.