Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
ban banh » ban hanh, ban danh, ban thanh
dang van » hoang van, hang va
tu sach » thu sach, su sach, te sach
ban anh » ban hanh, ban danh, bang anh
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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 y ((nang xa) or (dang van)) hoi. hieu qua cac xuc ((ban anh) OR (ban banh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang xa) OR (dang van)) hoi. hieu qua cac xuc ((ban anh) OR (ban banh)) thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (dang van)) hoi. hieu qua cac xuc ((ban anh) OR (ban banh)) thai cua tre*".