Perhaps you should try some spelling variations:
cau tren » cu tren, ca tren, cau treo
van hanh » van thanh, ban hanh, van anh
dau tren » dau tien, dat tren, dau tieng
nang co » nang cao, nang doc, nang noi
sach ty » sach y, sach tu, sach thu
sach ky » sac ky, sach y, sach kem
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hanh ke » hanh kem, thanh ke, hanh ky
hieu ve » hieu va, hieu van
co hoi » co hoc, co loi
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach ky) OR (sach ty)) nang co hoi. hieu ve cac xuc van hanh ke ((cau tren) OR (dau tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach ky) OR (sach ty)) nang co hoi. hieu ve cac xuc van hanh ke ((cau tren) or (dau tren))~".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ky) OR (sach ty)) nang co hoi. hieu ve cac xuc van hanh ke ((cau tren) or (dau tren))*.