Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
lang van » dang van, tang van, hoang van
cac xuc » cam xuc, cac nuoc, chat xuc
vai cuu » vai cua
tu sach » thu sach, te sach, tu cach
van cac » van hac, van cau, van bac
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo

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) or (su sach)) ky lang van hoi. hieu van cac xuc ((van hanh) or (ban hanh)) vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky lang van hoi. hieu van cac xuc ((van hanh) OR (ban hanh)) vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky lang van hoi. hieu van cac xuc ((van hanh) or (ban hanh)) vai cuu tre*.