Perhaps you should try some spelling variations:
thanh hoa » thanh pho
thanh vai » thanh hai, thanh van, thanh tai
sach ky » sac ky, sach y, sach ty
cua tre » cuu tre, cua triet, dua tren
tu sach » thu sach, su sach, te sach
qua ban » cua ban, qua quan
hieu va » lieu va, hieu qua
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
ca qua » cau qua, cac qua, ca quan
cua te » cua tu
va ca » va cac, va cao, va cai

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 ma hoa. hieu va ca qua ban ((thanh vai) or (thanh hoa)) ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang ma hoa. hieu va ca qua ban ((thanh vai) OR (thanh hoa)) ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang ma hoa. hieu va ca qua ban ((thanh vai) or (thanh hoa)) ((cua tre) OR (cua te))*".