Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac xuc » cam xuc, chat xuc, cac cuoc
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
lap hai » lap tai, lap hoat, lanh hai
lap lai » lap tai, lay lai, lam lai
ky sang » ky nang, ky dang, ky tang
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: thu sach ky sang ((lap hai) or (lap lai)). hieu ve ((cac xuc) OR (cac nuoc)) va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky sang ((lap hai) OR (lap lai)). hieu ve ((cac xuc) OR (cac nuoc)) va danh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky sang ((lap hai) or (lap lai)). hieu ve ((cac xuc) OR (cac nuoc)) va danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach ky sang ((lap hai) or (lap lai)). hieu ve ((cac xuc) OR (cac nuoc)) va danh vi cua te*.