Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
cua te » cua tu
te sac » te sach, te cac, te san
doc va » duoc va, hoc va, duc va
sac ky » cac ky, sai ky
soc va » hoc va, loc va, goc va

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