Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
vung tren » dung tren, vung tieng, vung trong
hieu vien » hieu hien, hieu viec, thieu nien
thai vung » thai cong, thai van
van nhanh » van thanh, van hanh, van khanh
vien cac » vien bach, vien dai, vien da
sach ky » sac ky, sach y, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
o lai » o lao
o hai » co hai, so hai, _ hai
o hoi » co hoi, o hoc, o hoa

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 ky nang ((o hoi) or (((o hai) or (o lai)))). hieu vien cac xuc van nhanh thai vung tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((o hoi) OR (((o hai) OR (o lai)))). hieu vien cac xuc van nhanh thai vung tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hoi) or (((o hai) or (o lai)))). hieu vien cac xuc van nhanh thai vung tren*.