Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
van dinh » van minh, van dich, va dinh
kho tang » cao tang
hieu van » hieu va, thien van, lieu va
dinh ve » dinh ket, dinh van
xuc van » duc van, luc van, vuc van
lam xuc » cam xuc, lam duoc
van lam » van nam
tu sach » su sach, te sach, tu cach
ky tang » ky nang, ky dang, ky trong
ve cua » le cua, de cua, te cua

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 (thu sach)) ((ky tang) or (kho tang)) xa hoi. hieu van lam xuc van dinh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ((ky tang) OR (kho tang)) xa hoi. hieu van lam xuc van dinh ve cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ((ky tang) or (kho tang)) xa hoi. hieu van lam xuc van dinh ve cua triet*.