Perhaps you should try some spelling variations:
developing control » developing country, developed control, developing countriesl
information lost » information loss, information cost, information list
control trials » control trial, controlled trials, control variables
20 developing » 2 developing, 10 developing, 24 developing
technology 1 » technology _
lost decade » last decade, first decade
costs 20 » costs 60, costs 2.3, costs 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information lost decade _ communication costs 20 developing control trials.*.