Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologies debt » technologies de, technologies art, technologies bit
model development » local development, social development, global development
debt information » student information, credit information, budget information
about forest » about forces, about foreign, about focus
a afrique » l afrique, en afrique

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

• Performing a fuzzy search may retrieve terms with similar spellings: Technologies debt information about forest _ communication cost model development a Afrique.~.
• Adding a wildcard symbol may retrieve word variants: Technologies debt information about forest _ communication cost model development a Afrique.*.