Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
quoc lan » quoc ban, nuoc luan, quoc quan
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
su hai » su tai
va cam » va cham, va cac, va cao
so hai » son hai, so ha, co hai
anh di » danh di, xanh di, anh d
di cua » dai cua, doi cua, de cua

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 ky nang ((so hai) OR (su hai)). hieu va cam ((xuc ban) or (quoc lan)) anh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((so hai) OR (su hai)). hieu va cam ((xuc ban) OR (quoc lan)) anh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((so hai) OR (su hai)). hieu va cam ((xuc ban) or (quoc lan)) anh di cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((so hai) OR (su hai)). hieu va cam ((xuc ban) or (quoc lan)) anh di cua triet*.