Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
thu sach » thuat sach, thuoc sach, thu hoach
giup cua » gian cua, tiep cua, gia cua
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
cua te » cua tu

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 (thu sach)) ky nang x ho. hieu va giup cua ban thanh vai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x ho. hieu va giup cua ban thanh vai ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang x ho. hieu va giup cua ban thanh vai ((cuu tre) or (cua te))*.