Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
ban hanh » ban hang
su triet » su viet, su tien, ve triet
tu nang » tru nang, tu nong, tu nano
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
su cac » tu cac, su cao, su can
cac tu » cac thu, cach tu, cac du
va dat » va dao, va dau, va dap
x hoi » xa hoi, o hoi, x ho
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac tu nang x hoi. hieu va dat nuoc ((va hanh) or (ban hanh)) vi ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac tu nang x hoi. hieu va dat nuoc ((va hanh) OR (ban hanh)) vi ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su cac tu nang x hoi. hieu va dat nuoc ((va hanh) or (ban hanh)) vi ((cua triet) or (su triet))*.