Perhaps you should try some spelling variations:
nhan tai » hang tai, van tai, toan tai
nang doc » nang luc
van nhan » van phan, van thanh, danh nhan
hieu ve » hieu va, hieu van
tai cuu » tai cuc, tai buu, tai cua
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ho » nang hoc, nang co, tang ho
cuu tre » cua tre, cau tren, cau treo
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: su sach ky ((((nang noi) or (nang doc))) or (nang ho)) hoi. hieu ve cac xuc van nhan tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((((nang noi) OR (nang doc))) OR (nang ho)) hoi. hieu ve cac xuc van nhan tai cuu tre*.