Perhaps you should try some spelling variations:
information centers » information contents, information officers
wages compensation » based compensation, workers compensation, labor compensation
technologies 3 » technologies _, technologies 4, technologies 2
3 information » 1 information
developing em » developing e, developing eq, developing amp
centers 3 » centers _, centers a, centers 3.3
em africa » 1 africa
3 wages » 13 wages, _ wages, 6 wages
1.3 a » 2.3 a, 1.1 a, 4.3 a

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: "technologies 3 information centers 3 wages compensation ((1.3 a) OR (1.3 _)) developing em africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies 3 information centers 3 wages compensation ((1.3 a) OR (1.3 _)) developing em africa.*.