• case-insensitive prefix search: default
  e.g., sig matches "SIGIR" as well as "signal"
• exact word search: append dollar sign ($) to word
  e.g., graph$ matches "graph", but not "graphics"
• boolean and: separate words by space
  e.g., codd model
• boolean or: connect words by pipe symbol (|)
  e.g., graph|network

Update May 7, 2017: Please note that we had to disable the phrase search operator (.) and the boolean not operator (-) due to technical problems. For the time being, phrase search queries will yield regular prefix search result, and search terms preceded by a minus will be interpreted as regular (positive) search terms.

found 3 matches

• 2004
• 
  Christiane Hertz-Fowler, Chris S. Peacock, Valerie Wood, Martin Aslett, Arnaud Kerhornou, Paul Mooney, Adrian Tivey, Matthew Berriman, Neil Hall, Kim Rutherford, Julian Parkhill, Alasdair C. Ivens, Marie-Adèle Rajandream, Bart Barrell:
  GeneDB: a resource for prokaryotic and eukaryotic organisms. Nucleic Acids Res. 32(Database-Issue): 339-343 (2004)
• 
  Michael Wollowski, Peter Nei, Chris Barrell:
  A diagrammatic inference system for the web. WWW (Alternate Track Papers & Posters) 2004: 374-375
• 2003
• 
  Nicola J. Mulder, Rolf Apweiler, Terri K. Attwood, Amos Bairoch, Daniel Barrell, Alex Bateman, David Binns, Margaret Biswas, Paul Bradley, Peer Bork, Philipp Bucher, Richard R. Copley, Emmanuel Courcelle, Ujjwal Das, Richard Durbin, Laurent Falquet, Wolfgang Fleischmann, Sam Griffiths-Jones, Daniel H. Haft, Nicola Harte, Nicolas Hulo, Daniel Kahn, Alexander Kanapin, Maria Krestyaninova, Rodrigo Lopez, Ivica Letunic, David Lonsdale, Ville Silventoinen, Sandra E. Orchard, Marco Pagni, David Peyruc, Chris P. Ponting, Jeremy D. Selengut, Florence Servant, Christian J. A. Sigrist, Robert Vaughan, Evgeni M. Zdobnov:
  The InterPro Database, 2003 brings increased coverage and new features. Nucleic Acids Res. 31(1): 315-318 (2003)