Perhaps you should try some spelling variations:
ban thanh » ban hanh
cham sao » cham vao, cham soc, nam sao
ban hang » ngan hang
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
ly hang » ly quang
ly nang » ky nang, ly vang, ly quang
cua te » cua tu
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: te sach ((ly nang) or (ly hang)) x hoi. hieu ve cham sao ((ban thanh) OR (ban hang)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly nang) OR (ly hang)) x hoi. hieu ve cham sao ((ban thanh) OR (ban hang)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) or (ly hang)) x hoi. hieu ve cham sao ((ban thanh) OR (ban hang)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) or (ly hang)) x hoi. hieu ve cham sao ((ban thanh) OR (ban hang)) vai cua te*.