Perhaps you should try some spelling variations:
vanh dai » vanh tai, lanh dao, van dao
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
van dai » van dao, van hai, can dai
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » tuc va, luc va, xac 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: te sach ty nang x hoi. hieu va cam ((xuc va) OR (duc va)) ((vanh dai) or (van dai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu va cam ((xuc va) OR (duc va)) ((vanh dai) OR (van dai)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. hieu va cam ((xuc va) OR (duc va)) ((vanh dai) or (van dai)) cua tre*".