Perhaps you should try some spelling variations:
cham tac » cham soc, pham tai, che tac
thanh de » hanh de, thanh ve, thanh do
bach ky » bac ky
va cham » va chat, va tham
co hoi » co hoc, co loi
de cua » le cua, te cua, dieu cua
cua tu » cua tuc, cua su, cua cu
o hoi » o hoc, o hai, o hoa
gia » giao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky nang ((o hoi) or (co hoi)). lieu va cham tac gia thanh de cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky nang ((o hoi) OR (co hoi)). lieu va cham tac gia thanh de cua tu.
• Adding a wildcard symbol may retrieve word variants: vu bach ky nang ((o hoi) or (co hoi)). lieu va cham tac gia thanh de cua tu*.