Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cam » va cao, va cai, va cau
xuc va » duc va, tuc va, luc va
ve cua » le cua, de cua, te cua

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