Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve giao » te giao, viet giao, van giao
dua ban » cua ban, qua ban, mua ban
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. hieu ve giao ((dua ban) or (dia ban)) thanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu ve giao ((dua ban) OR (dia ban)) thanh vai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu ve giao ((dua ban) or (dia ban)) thanh vai ((cua tre) or (cua te))*.