Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
hanh lam » thanh lap, hanh kem, hanh va
sach tu » sach thu, cach tu, sach ty
cho tre » cho thue, khoe tre
cuc ban » cua ban, cac ban, cuu ban
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, quoc ban, xuat ban
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano

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