Perhaps you should try some spelling variations:
cua triet » su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
cua viet » ca viet, hoa viet, cua vat
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, ban hanh
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
va co » vo co

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

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