Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
tra nang » thi nang, kha nang, da nang
xuc van » duc van, luc van, vuc van
van cam » van nam, van lam, van cau
tu nang » tru nang, tu nong, tu nano
va huu » vu huu
va chu » va che, va cau, va chi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((tu nang) or (tra nang)) xa hoi. hieu van cam xuc van thanh ((va huu) or (va chu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((tu nang) OR (tra nang)) xa hoi. hieu van cam xuc van thanh ((va huu) OR (va chu)) tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((tu nang) or (tra nang)) xa hoi. hieu van cam xuc van thanh ((va huu) or (va chu)) tre*.