Perhaps you should try some spelling variations:
thieu nien » thien nhien
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
thai van » thi van, thanh van, thai vung
nien cac » vien cac, dien cac, bien cac
thu sach » tu sach, thuat sach, thuoc sach
van tren » van tien, quan tren, van trung
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
co hoi » co hoc, co loi
o lai » o lao
o hai » co hai, so hai, _ hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((co hoi) or (((o hai) or (o lai)))). thieu nien cac xuc van nhanh thai van tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((co hoi) OR (((o hai) OR (o lai)))). thieu nien cac xuc van nhanh thai van tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((co hoi) or (((o hai) or (o lai)))). thieu nien cac xuc van nhanh thai van tren*.