Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, tu cach
vai cuu » vai cua
cay dua » chay dua, cay lua, cay nua
cuu tre » cua tre, cau tren, cau treo
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
te sach » toc sach
ca dua » ca cua, ca da, ca lua

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 (te sach)) ky sang ma hoa. hieu van ((ca dua) or (cay dua)) ban thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky sang ma hoa. hieu van ((ca dua) OR (cay dua)) ban thanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ky sang ma hoa. hieu van ((ca dua) or (cay dua)) ban thanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) ky sang ma hoa. hieu van ((ca dua) or (cay dua)) ban thanh vai cuu tre*.