Perhaps you should try some spelling variations:
communications model » communications models, communication model, communicating model
can development » clean development, chain development, plan development
development li » development lid, development lie, development lin
li afrique » l afrique, en afrique
safe data » mafe data, safety data, life data
model can » model case, model canvas
gap safe » gap rate

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information gap safe data communications model can development li afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information gap safe data communications model can development li afrique.*.