Perhaps you should try some spelling variations:
ban hang » ngan hang
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
tu cao » cu cao, tu cac, vu cao
di cau » da cau, diem cau
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: tu cao ky nang x hoi. hieu ve cham soc ((ban hang) OR (va danh)) di cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky nang x hoi. hieu ve cham soc ((ban hang) OR (va danh)) di cau tren".
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang x hoi. hieu ve cham soc ((ban hang) OR (va danh)) di cau tren*.