Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac
vi cua » vai cua, di cua
cua te » cua tu
5 hoi » o hoi

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 ((5 hoi) or (xa hoi)). hieu ve cac xuc ((van hanh) or (ban hanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((5 hoi) OR (xa hoi)). hieu ve cac xuc ((van hanh) OR (ban hanh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((5 hoi) or (xa hoi)). hieu ve cac xuc ((van hanh) or (ban hanh)) vi cua te*.