Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va trien, ve triet, va viet
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve dam » ven dam, ke dam, va dam
dam tu » nam tu, cam tu, tam tu
thiet » thieu

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: tu sac ky tang xa hoi. hieu ve dam tu va hanh vi ((cua triet) OR (((va triet) OR (va thiet))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang xa hoi. hieu ve dam tu va hanh vi ((cua triet) or (((va triet) OR (va thiet))))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang xa hoi. hieu ve dam tu va hanh vi ((cua triet) or (((va triet) OR (va thiet))))*.