Perhaps you should try some spelling variations:
ban hang » ngan hang
ve chim » va chim, ve cham, ve chinh
va cham » va chat, va tham
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
vu cao » cu cao, va cao
di cuu » di cau, di cua, dinh cuu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu cao ky nang x hoi. hieu ((ve chim) or (va cham)) soc ((ban hang) or (va danh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cao ky nang x hoi. hieu ((ve chim) OR (va cham)) soc ((ban hang) OR (va danh)) di cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu cao ky nang x hoi. hieu ((ve chim) or (va cham)) soc ((ban hang) or (va danh)) di cuu tre*.