Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh va » thanh van, hanh va, thanh ha
tu sach » thu sach, su sach, te sach
cau xuc » cam xuc, cau luc, cau truc
cuu tre » cau tren, cau treo
xuc van » duc van, luc van, vuc van
cua tre » cua te, cua triet, dua tren
hieu va » lieu va, hieu qua
tu nang » tru nang, tu nong, tu nano
va cau » van cau, va cac, va dau

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 ((tu nang) or (truc nano)) xa hoi. hieu va cau xuc van thanh va ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu nang) OR (truc nano)) xa hoi. hieu va cau xuc van thanh va ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu nang) or (truc nano)) xa hoi. hieu va cau xuc van thanh va ((cuu tre) or (cua tre))*.