Perhaps you should try some spelling variations:
ban hang » ngan hang
ve chat » va chat, van chat
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
ve cham » va cham, vu cham, ve chim
nang xa » nang x, lang xa, nang ma
nam ky » cam ky, nam ly
di cuu » di cau, di cua, dinh cuu
tu nam » su nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu nam ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((ban hang) or (va danh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu nam ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((ban hang) OR (va danh)) di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu nam ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((ban hang) or (va danh)) di cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu nam ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((ban hang) or (va danh)) di cuu tre*.