Perhaps you should try some spelling variations:
extensions spezification » expressions specification, extending specification, extension certification
communication cohesion » communication collections, communication control, communication cost
spezification model » specification model, specifications model, specification models
center extensions » central extensions, tensor extensions, further extensions
cohesion center » cohesion chapter, johnson center, cohesion tensor

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication cohesion center extensions spezification model~.
• Adding a wildcard symbol may retrieve word variants: communication cohesion center extensions spezification model*.