Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va danh, ban hanh
cac luc » cau luc, coc luc, cac nuoc
van cac » van hac, van cau, van bac
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
su xac » pu xac, su cac
noi ve » moi ve, noi va
su sac » su sach, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su xac)) ky dang xa hoi. hieu van cac luc ((va hanh) or (va thanh)) noi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky dang xa hoi. hieu van cac luc ((va hanh) OR (va thanh)) noi ve triet.
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su xac)) ky dang xa hoi. hieu van cac luc ((va hanh) or (va thanh)) noi ve triet*.