Perhaps you should try some spelling variations:
developed control » developing control, developed country, developed content
information last » information list, information lost, information law
a communication » la communication, data communication, data communications
control trials » control trial, controlled trials, control variables
technology 1 » technology _
last decades » last decade, lost decade, past decade
60 developed » 6 developed, 2.0 developed, 6.1 developed
decades a » decades _, decade _, decade 1
costs 60 » costs 20, costs 6.4, costs 168

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information last decades a communication costs 60 developed control trials.*.