Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thi hang » thi hanh, thi nang, thi hong
hieu van » hieu va, thien van, lieu va
can ban » van ban, toan ban
xuc can » xuc cam, xuc ban, luc canh
nam xuc » cam xuc, nam xua, nam thuc
ty lang » tay lang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
ban vi » ban voi, ban va, ban ve
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: ((thu sach) or (vu bach)) ((ty lang) or (thi hang)) xa hoi. hieu van nam xuc can ban vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (vu bach)) ((ty lang) OR (thi hang)) xa hoi. hieu van nam xuc can ban vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (vu bach)) ((ty lang) or (thi hang)) xa hoi. hieu van nam xuc can ban vi cua tre*.