Perhaps you should try some spelling variations:
technologies barriers » technological barriers, technologies varies, technology barriers
barriers formulation » basic formulation, barriers irradiation, barriers location
active communication » reactive communication, proactive communication, actions communication
formulation a » formulation _, formulation 3, formulation 4
besser active » based active, been active, besser agile
development 2 » development 1, development 2.1, development 2.3
a besser » a lesser, 2 bessere, a better
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies barriers formulation a besser active communication costs _ development 2 areas.*.