Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
te sach » toc sach
nam qua » nam quan, nam cua, nam mua
qua ban » cua ban, qua quan
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
va nam » van nam, ha nam, va nay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (te sach)) y nang ((xa hoi) or (ma hoa)). lieu va nam qua ban thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (te sach)) y nang ((xa hoi) OR (ma hoa)). lieu va nam qua ban thanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (te sach)) y nang ((xa hoi) or (ma hoa)). lieu va nam qua ban thanh vai cuu tre*.