Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
sach ty » sach tu, sach thu, xach tay
ban anh » ban hanh, ban banh, bang anh
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua
ve cac » va cac, vien cac

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 ty) or (sach y)) nang ma hoi. hieu ve cac xuc ((ban anh) or (ban danh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang ma hoi. hieu ve cac xuc ((ban anh) OR (ban danh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach y)) nang ma hoi. hieu ve cac xuc ((ban anh) or (ban danh)) vi cua tre*.