Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
toc sach » hoc sach, doc sach, thuoc sach
thai cau » thai cao, toan cau, thai van
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu van
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
o hai » co hai, so hai, o lai
o hoc » co hoc, mo hoc, so hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang ((o hoc) or (o hai)). ((hieu ve) or (hieu va)) cam xuc van nhanh thai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang ((o hoc) OR (o hai)). ((hieu ve) OR (hieu va)) cam xuc van nhanh thai cau tren.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ((o hoc) or (o hai)). ((hieu ve) or (hieu va)) cam xuc van nhanh thai cau tren*.