Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua viet » ca viet, hoa viet, cua vat
tham xuc » tham nuoc, tham thuc, cam xuc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
su sach » so sach, vu sach
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua

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 (thuat sach)) ky tang xa hoi. hieu va ((tham xuc) OR (pham duc)) va danh vi cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thuat sach)) ky tang xa hoi. hieu va ((tham xuc) OR (pham duc)) va danh vi cua viet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat sach)) ky tang xa hoi. hieu va ((tham xuc) OR (pham duc)) va danh vi cua viet*.