החיפוש שביצעת - "((information instruments) or (international instruments)) central extension array paving*" - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
international instruments » international students, international investments, international investment
information instruments » informational instruments, information instrumental, deformation instrument
central extension » central extensions, federal extension, rural extension
extension array » extension area, extension assay, extension assays
array paving » array planning, array imaging, array probing

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