Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
chau tre » chau tho, cho tre, cau tra
sach ty » sach y, sach tu, sach thu
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 ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ve cac » va cac, vien cac
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 ve cac ((xuc ban) OR (cuc ban)) hanh kem ((chau tre) or (chay tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu ve cac ((xuc ban) OR (cuc ban)) hanh kem ((chau tre) OR (chay tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu ve cac ((xuc ban) OR (cuc ban)) hanh kem ((chau tre) or (chay tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu ve cac ((xuc ban) OR (cuc ban)) hanh kem ((chau tre) or (chay tren))*.