Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
lang ha » long ha
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
ky lang » ky nang, ky dang, ky tang
te cao » te bao
doc va » duoc va, hoc va, duc va
soc va » hoc va, loc va, goc va
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cao ky lang ha hoi. hieu va tham ((soc va) or (doc va)) hanh vi ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cao ky lang ha hoi. hieu va tham ((soc va) OR (doc va)) hanh vi ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te cao ky lang ha hoi. hieu va tham ((soc va) or (doc va)) hanh vi ((cua tre) or (su triet))*.