Perhaps you should try some spelling variations:
ethnographic codes » ethnographic models, ethnographic notes, ethnographic mode
ethnographic data » ethnographic case, oceanographic data, ethnographic _
codes online » code online, nodes online, models online

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ethnographic codes online, volume 1 ) OR ( ethnographic data online, volume 1 )).
• Adding a wildcard symbol may retrieve word variants: (( ethnographic codes online, volume 1 ) or ( ethnographic data online, volume 1 ))*.