Perhaps you should try some spelling variations:
thanh sang » thanh san, thanh hang, thanh hoang
sang cua » mang cua, song cua, hang cua
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
thi van » thi lan, thi hanh, thi nang
van lam » van nam
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, duc va
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 ty nang x hoi. thi van lam ((tuc va) or (tuc xa)) thanh sang cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. thi van lam ((tuc va) OR (tuc xa)) thanh sang cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. thi van lam ((tuc va) or (tuc xa)) thanh sang cua tre*.