Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
vai cau » va cau, van cau, vai cac
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
su sach » vu sach
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
so sach » so sanh, bo sach, co sach
cac xuc » cam xuc, cac nuoc, chat xuc
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) ky nang cao hoi. hieu ve cac xuc ((va hanh) or (va danh)) vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky nang cao hoi. hieu ve cac xuc ((va hanh) OR (va danh)) vai cau tren.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ky nang cao hoi. hieu ve cac xuc ((va hanh) or (va danh)) vai cau tren*.