Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
cau tren » cu tren, dau tren, ca tren
thai cau » thai cao, toan cau, thai van
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve cam » ve cham, ve cac, va cam
_ hai » _ tai, _ hao
o hoi » co hoi, o hoc, o hai
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 ky nang ((o hoi) or (((_ hai) or (o lai)))). hieu ve cam xuc van hanh thai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((o hoi) OR (((_ hai) OR (o lai)))). hieu ve cam xuc van hanh thai cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hoi) or (((_ hai) or (o lai)))). hieu ve cam xuc van hanh thai cau tren*.