Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, le thanh
va hanh » van hanh, va danh, ban hanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, dua tren
va tinh » may tinh
te sac » te sach, te cac, te san
soc va » hoc va, loc va, doc va
sac ky » cac ky, sai ky

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 lang xa hoi. hieu ((va thanh) OR (va tinh)) soc va hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu ((va thanh) OR (va tinh)) soc va hanh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu ((va thanh) OR (va tinh)) soc va hanh vi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu ((va thanh) OR (va tinh)) soc va hanh vi ((cua tre) or (cua triet))*.