Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
cham tuc » nham thuc, pham thuc, tham thuc
tuc van » thuc van, truc van, tuc va
va cham » va chat, va tham
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, mang xa
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
vi cua » vai cua, di 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 ((nang xa) OR (nang ma)) hoi. lieu va cham tuc van hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (so sach)) ky ((nang xa) OR (nang ma)) hoi. lieu va cham tuc van hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (so sach)) ky ((nang xa) OR (nang ma)) hoi. lieu va cham tuc van hanh vi cua triet*.