Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
ban hang » ngan hang
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
hang vi » hang va, hanh vi, hang di
xuc ban » duc ban, cuc ban, quoc ban
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (vu khach)) ((ty lang) or (ty hang)) xa hoi. hieu van cau xuc ban hang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu khach)) ((ty lang) OR (ty hang)) xa hoi. hieu van cau xuc ban hang vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu khach)) ((ty lang) or (ty hang)) xa hoi. hieu van cau xuc ban hang vi cua tre*.