Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang xa » lang xa, nang ma, mang xa
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ve cam » ve cac, va cam, ve cai
vi su » va su, ve su, ki su

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: tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) OR (ve cham)) tu va hanh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (ve cham)) tu va hanh vi su triet~".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (ve cham)) tu va hanh vi su triet*.