After few days running, almost all my keywords campaign is "inactive for search" and need to increase the bid. Even inactive for search, is it still shown on the publisher website or not?
It means that the bid is too low, AdWords calculates the rank of your ad by two main parameters - quality score and bid amount.. your quality score is too low for your bid on the inactive keywords. Raise your bid and/or your quality score (by changing landing pages, ad content & keywords). You ads may still appear on content network if it's adjusted to be on. Check it every 12 hour and see if you get impressions. Good luck
1. how much are you bidding 2. What are you bidding on 3. What does your creative look like 4. What is the landing page Send this information for a better analysis
the bids that you are making on those keywords are too low. Need to be increase before google even considers showing those ads.