Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
lai hoa » loai hoc
dai hoa » dai khoa, dai hoc, dai hoi
hieu va » lieu va, hieu qua
su sac » su sach, su cac, su xac
xuc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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 ky nang ((lai hoa) OR (dai hoa)). hieu va cam xuc va hanh vai ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ((lai hoa) OR (dai hoa)). hieu va cam xuc va hanh vai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ((lai hoa) OR (dai hoa)). hieu va cam xuc va hanh vai ((cua triet) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ((lai hoa) OR (dai hoa)). hieu va cam xuc va hanh vai ((cua triet) or (va triet))*.