Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
3 information » 1 information
union schemes » pension schemes, union schluss, donation schemes
technology 3 » technology _, technology 1, technology 4
labor union » labor unions, labor united
1 west » a west, 1 wert, g west
2 west » a west, 2 welt, g west

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: "technology 3 information ((1 west) OR (2 west)) labor union schemes _ developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 3 information ((1 west) OR (2 west)) labor union schemes _ developpement en afrique.*.