Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
lang van » dang van, tang van, hoang van
thanh vi » hanh vi, thanh va, thanh ve
xuc ban » duc ban, cuc ban, quoc ban
hieu ve » hieu va, hieu van
sach ky » sac ky, sach ty, sach kem
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sach y)) ((nang ma) or (lang van)) hoi. hieu ve cam xuc ban thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) ((nang ma) OR (lang van)) hoi. hieu ve cam xuc ban thanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) ((nang ma) or (lang van)) hoi. hieu ve cam xuc ban thanh vi cua tre*".