Hi Dinh.  Thanks for your quesiton.  Headhunters (HH) are not created equally.  When it comes to headhunting, Vietnam is still in the development phase, meaning best practices and professional associations have yet to be set.  This results in a variance in service and quality levels among HH firms.  Good HH firms will have either employees who have worked at other reputable, regional, or global firms, or global / regional operations that have transplanted AND localized best practices in Vietnam.  As I mentioned in other posts, a good, professional HH should be able to provide clients with not only succeful candidates that make impactful results within their organizations, but with valuable information to help clients understand the local and regional talent pool and build a talent pipeline for current and future needs.  On the candidate side, a good HH should provide valueble job AND market information for current and future career objectives. Please let me know if you need specific information on operating models, fee structures, etc.  I can be more specific!