Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
van giao » nang giao, toan giao, dan gian
va thanh » gia thanh, va tinh, le thanh
va giao » va giai, va gia, ve giao
hai cuc » tai cuc, hai cua, thai cua
cuc tre » duc tre, cua tre, cuu tre
y nang » ky nang, ly nang, v nang
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: thu sach y nang x hoi. hieu ((va giao) or (van giao)) duc ((va thanh) OR (ban thanh)) hai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu ((va giao) OR (van giao)) duc ((va thanh) OR (ban thanh)) hai cuc tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu ((va giao) or (van giao)) duc ((va thanh) OR (ban thanh)) hai cuc tre*".