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

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