Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van tham » van thanh, van tuan, van tai
van chat » cao chat
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
soc va » hoc va, loc va, doc 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 san ky lang xa hoi. hieu ((van tham) or (van chat)) soc va hanh vi ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky lang xa hoi. hieu ((van tham) OR (van chat)) soc va hanh vi ((cuu tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te san ky lang xa hoi. hieu ((van tham) or (van chat)) soc va hanh vi ((cuu tre) or (cua triet))*.