Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
van nhanh » van thanh, van hanh, van khanh
cau tren » cu tren, dau tren, ca tren
tinh cau » trinh cau, tinh cao, sinh cau
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
ty nang » ky nang, ty xang, ty hang
tu sach » thu sach, su sach, te sach
ve cac » va cac, vien cac
o hai » co hai, so hai, o lai
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 ty nang ((o hoi) or (o hai)). hieu ve cac xuc van nhanh tinh cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((o hoi) OR (o hai)). hieu ve cac xuc van nhanh tinh cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((o hoi) or (o hai)). hieu ve cac xuc van nhanh tinh cau tren*.