Perhaps you should try some spelling variations:
bac thanh » ban thanh, cac thanh, tai thanh
cac cong » cua cong
cong bac » cong tac, dong bac, cong cac
thanh vi » hanh vi, thanh va, thanh ve
va triet » va thiet, ve triet, cua triet
va trien » va truyen, va thiet, va tuyen
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang x hoi. lieu va cac cong bac thanh vi ((va triet) OR (va trien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. lieu va cac cong bac thanh vi ((va triet) OR (va trien))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. lieu va cac cong bac thanh vi ((va triet) OR (va trien))*.