Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh va, thanh ve
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
xuc van » duc van, luc van, vuc van
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac ky nang xa hoi. ((hieu ve) or (hieu van)) cam xuc van thanh vi ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac ky nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van thanh vi ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: hoc cac ky nang xa hoi. ((hieu ve) or (hieu van)) cam xuc van thanh vi ((cua triet) or (cua te))*.