Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
duoc hoi » quoc hoi, duoc hoc, duoc si
va thanh » gia thanh, va tinh, le thanh
cong ky » cuong ky, cong ty, hong ky
doc hoi » hoc hoi, doc hai, doi hoi
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
de cua » le cua, te cua, dieu cua
va cao » va cac, va co, va dao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu cong ky nang ((doc hoi) OR (duoc hoi)). hieu va cao xuc ((va thanh) or (ban thanh)) de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cong ky nang ((doc hoi) OR (duoc hoi)). hieu va cao xuc ((va thanh) OR (ban thanh)) de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu cong ky nang ((doc hoi) OR (duoc hoi)). hieu va cao xuc ((va thanh) or (ban thanh)) de cua te".
• Adding a wildcard symbol may retrieve word variants: thu cong ky nang ((doc hoi) OR (duoc hoi)). hieu va cao xuc ((va thanh) or (ban thanh)) de cua te*.