Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
ve cham » va cham, ve chat, vu cham
hanh vu » hanh vi, hanh va, hanh tu
va hanh » van hanh, va thanh, va danh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
tuc va » thuc va, truc va, tuc xa
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
ve cam » ve cac, va cam, ve cai
vu va » vu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky dang xa hoi. hieu ((ve cam) or (ve cham)) tuc va hanh vu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky dang xa hoi. hieu ((ve cam) OR (ve cham)) tuc va hanh vu va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky dang xa hoi. hieu ((ve cam) or (ve cham)) tuc va hanh vu va triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky dang xa hoi. hieu ((ve cam) or (ve cham)) tuc va hanh vu va triet*.