Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, cau treo
ban hanh » ban hang
hanh lam » thanh lap, hanh kem, hanh va
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
ty nang » ky nang, ty xang, ty hang
sach ty » sach y, sach tu, sach thu
cho tre » cho thue, khoe tre
ca tren » cu tren, la tren, co tren
tu sach » thu sach, su sach, te sach
va cam » va cham, va cac, va cao
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. hieu va cam xuc ban hanh lam ((cho tre) or (((ca tren) OR (cau tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu va cam xuc ban hanh lam ((cho tre) OR (((ca tren) OR (cau tren)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu va cam xuc ban hanh lam ((cho tre) or (((ca tren) OR (cau tren))))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu va cam xuc ban hanh lam ((cho tre) or (((ca tren) OR (cau tren))))*.