Command  Example  Result 

keyword  Math  All adverts with ...Math... (Mathematics, Biomathematics, mathematical, etc) 
"keyword"  "Algebra"  All adverts with exactly the word Algebra 
keyword1 keyword2  Algebra Geometry  All adverts with Algebra and/or Geometry 
"keyword1 keyword2"  "Algebraic Geometry"  All adverts with exactly the phrase Algebraic Geometry 
+keyword1 +keyword2  +Algebra +Geometry  All adverts with Algebra and Geometry 
+keyword1 keyword2  +Algebra Geometry Geometry +Algebra 
All adverts with Algebra and not Geometry 
keyword*  Geom*  All adverts starting with Geom... (Geometry, Geomatics, geometrically, etc) 
Country[country abbreviation] (see here all country abbreviations used) 
Country[ch] Country[at ch de] 
All adverts in Switzerland All adverts in Austria, Switzerland or Germany 
Location[city]  Location[London] Location["New York" London] 
All adverts in London All adverts in New York or London 
Institution[company/university]  Institution["Princeton University"] Institution["Princeton University" "Lawrence Berkeley National Laboratory"] 
All adverts at Princeton University All adverts at Princeton University or Lawrence Berkeley National Laboratory 
Remarks:
