Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, khau sach
hieu van » hieu va, thien van, lieu va
tu sach » su sach, te sach, tu cach
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
van lam » van nam
lam xuc » cam xuc, lam duoc
va dinh » van dinh, va kinh, va tinh
dinh ve » dinh ket, dinh van
xuc va » duc va, tuc va, luc va
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) OR (thu hoach)))) ky tang xa hoi. hieu van lam xuc va dinh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((thu sach) OR (thu hoach)))) ky tang xa hoi. hieu van lam xuc va dinh ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (((thu sach) OR (thu hoach)))) ky tang xa hoi. hieu van lam xuc va dinh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((thu sach) OR (thu hoach)))) ky tang xa hoi. hieu van lam xuc va dinh ve cua triet*.