Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh tac » canh tac, danh bac, doanh tai
cau tren » cu tren, dau tren, ca tren
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
tac hai » tuc hai, tac ha, tai hai
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
vi cau » va cau, ve cau, di cau

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 danh tac hai. lieu ((va cam) or (va cao)) xuc va hanh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky danh tac hai. lieu ((va cam) OR (va cao)) xuc va hanh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ky danh tac hai. lieu ((va cam) or (va cao)) xuc va hanh vi cau tren*.