Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
vu chat » va chat, ve chat, du chat
hieu vu » hieu va, hieu ve, hieu su
dai moi » doi moi
dai hoi » dai hoc, dai hai
ky tang » ky nang, ky dang, kho tang
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu

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) OR (tu cac)) ky tang ((dai hoi) OR (dai moi)). hieu vu chat xuc va hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (tu cac)) ky tang ((dai hoi) OR (dai moi)). hieu vu chat xuc va hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (tu cac)) ky tang ((dai hoi) OR (dai moi)). hieu vu chat xuc va hanh vi cua te*.