Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, le thanh
sach ky » sac ky, sach y, sach ty
lam cua » nam cua, lam chat
va tinh » may tinh
bao luc » bao thuc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
hieu ve » hieu van
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
ha hoi » hoa hoi, ha noi, xa hoi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang ha hoi. ((hieu ve) OR (hieu va)) bao luc ((va thanh) OR (va tinh)) lam cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang ha hoi. ((hieu ve) OR (hieu va)) bao luc ((va thanh) or (va tinh)) lam cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky dang ha hoi. ((hieu ve) OR (hieu va)) bao luc ((va thanh) or (va tinh)) lam cua triet*.