Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
cua tre » cuu tre, cua triet, dua tren
xuc van » duc van, luc van, xuc ban
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
tu cach » tu cac
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
su sach » so sach, vu sach
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: ((tu cach) or (su sach)) ky lang xa hoi. hieu van cau xuc van hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky lang xa hoi. hieu van cau xuc van hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky lang xa hoi. hieu van cau xuc van hanh vi ((cua tre) or (cua te))*.