Perhaps you should try some spelling variations:
cua triet » su triet, va triet
van thanh » ban thanh, van tuan
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, vu nang, van nang

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: tu sach ((ky nang) OR (v nang)) ma hoi. hieu va cam xuc van thanh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky nang) or (v nang)) ma hoi. hieu va cam xuc van thanh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky nang) or (v nang)) ma hoi. hieu va cam xuc van thanh vi ((cua triet) OR (cua viet))*.