Perhaps you should try some spelling variations:
farm competition » firm competition, fears competition, firms competition
developpement en » developpement et, developpement des, developpement de
technology 1 » technology _
1 innovation » 2 innovation, 3 innovation, 4 innovation
en america » _ america
rice farm » rice farms, rice farmer, rice farmers
12.4 le » 12.4 l1, 12.4 re, 12.4 left
2.4 le » 2.4 les, 2.4 la, 1.4 le

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 1 innovation _ rice farm competition ((12.4 le) OR (2.4 le)) developpement en america.~".
• Adding a wildcard symbol may retrieve word variants: technology 1 innovation _ rice farm competition ((12.4 le) OR (2.4 le)) developpement en america.*.