Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
sach ky » sac ky, sach ty, sach kem
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
hanh d » hanh de, anh d, hanh _
x hoi » xa hoi, x ho, 5 hoi
d cua » de cua, do cua, da cua
o hoi » co hoi, o hoc, o hai

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