Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
internet services » internet service
care integration » fare integration, scale integration, re integration
price internet » pre internet, service internet, freie internet
import price » import prices, export price, export prices
import care » import share, import mart, impact care

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( import care integration theories. ) OR ( import price internet services. ))~".
• Adding a wildcard symbol may retrieve word variants: (( import care integration theories. ) OR ( import price internet services. ))*.