Perhaps you should try some spelling variations:
van thanh » van tuan
ban thanh » ban hanh, ban hang
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu nang co hoi. hieu ve cam xuc ((van thanh) OR (ban thanh)) vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach tu nang co hoi. hieu ve cam xuc ((van thanh) OR (ban thanh)) vi cua tre*.