Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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) or (thuoc sach)) ky nang x ho. hieu va cham xuc va hanh ((di cua) OR (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuoc sach)) ky nang x ho. hieu va cham xuc va hanh ((di cua) OR (de cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuoc sach)) ky nang x ho. hieu va cham xuc va hanh ((di cua) OR (de cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuoc sach)) ky nang x ho. hieu va cham xuc va hanh ((di cua) OR (de cua)) tre*.