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

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 ((o hoi) OR (co 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 ((o hoi) OR (co 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 ((o hoi) OR (co 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 ((o hoi) OR (co hoi)). hieu ve cham soc ban thanh ((vai cua) or (hai cua)) te*.