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
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
hieu vu » hieu va, hieu su, dieu vu
lai roi » loi roi
lai hoi » dai hoi, lai hoa, mai hoi
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.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky tang ((lai hoi) or (lai roi)). ((hieu vu) OR (hieu ve)) chat xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky tang ((lai hoi) OR (lai roi)). ((hieu vu) OR (hieu ve)) chat xuc va hanh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky tang ((lai hoi) or (lai roi)). ((hieu vu) OR (hieu ve)) chat xuc va hanh vi cua te*".