Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
soc ban » hoc ban, coc ban, so ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
o hoi » co hoi, o hoc, o hai

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 vang)) o hoi. hieu ve cham soc ban thanh ((vai cua) or (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly nang) OR (ly vang)) o hoi. hieu ve cham soc ban thanh ((vai cua) OR (hai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) OR (ly vang)) o hoi. hieu ve cham soc ban thanh ((vai cua) or (hai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) OR (ly vang)) o hoi. hieu ve cham soc ban thanh ((vai cua) or (hai cua)) te*.