Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, te sach
cua qua » cua quan, cuu qua, qua quan
vai cuu » vai cua
cua rua » cua luat, cua nhua, cua quan
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
bao hoa » ba hoa, bao hoc, bao toan
tao hoa » tao hoi, tao ho, tao hop
ky sang » ky nang, ky dang, ky tang
cuu tre » cua tre, cau tren, cau treo

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