Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
hieu hien » bieu hien, dieu hien, chieu chien
thanh te » thanh ve, thanh de, thanh le
hien cac » thien cac, vien cac, hieu cac
luc ban » duc ban, cuc ban, luc bat
cac luc » cau luc, coc luc, cac nuoc
vu sach » vu bach, su sach, vu khach
lang ha » long ha
lang xa » dang xay, lang van
so sach » so sanh, bo sach, co sach
te cua » tue cua, le cua, de cua

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: ((vu sach) OR (so sach)) ky ((lang xa) OR (lang ha)) hoi. hieu hien cac luc ban thanh te cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (so sach)) ky ((lang xa) OR (lang ha)) hoi. hieu hien cac luc ban thanh te cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (so sach)) ky ((lang xa) OR (lang ha)) hoi. hieu hien cac luc ban thanh te cua triet*.