Perhaps you should try some spelling variations:
hanh lam » thanh lap, hanh kem, hanh va
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
cho tre » cho thue, khoe tre
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
ca tren » cau tren, cu tren, la tren
x hoi » o hoi, x ho, 5 hoi

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) OR (xa hoi)). hieu va cac xuc ban hanh lam ((cho tre) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((x hoi) OR (xa hoi)). hieu va cac xuc ban hanh lam ((cho tre) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ((x hoi) OR (xa hoi)). hieu va cac xuc ban hanh lam ((cho tre) or (ca tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((x hoi) OR (xa hoi)). hieu va cac xuc ban hanh lam ((cho tre) or (ca tren))*.