Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh van » thanh san, thanh toan, thanh phan
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cam » van lam, van cau, van dam
luc ban » duc ban, cuc ban, luc bat
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky dang xa hoi. hieu ((van cam) OR (van nam)) luc ban thanh van ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky dang xa hoi. hieu ((van cam) or (van nam)) luc ban thanh van ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: vu sac ky dang xa hoi. hieu ((van cam) or (van nam)) luc ban thanh van ((cua triet) OR (cua viet))*.