'energy, education, research' with the boolean 'OR' would find records containing 'energy' or 'education' or 'research', whereas changing the boolean to 'AND' would only find records containing 'energy' and 'education' and 'research'. Wildcard character is % which is added to both sides of the keywords but you can use it within a keyword i.e. 'education%research' which would catch 'educational research' and 'education on energy research'.
Professeur Claude Allegre, Ancien Ministre d L' Education Nationale, Paris/Université Denis Diderot
This discussion appeared in the FST Journal Volume 17, Number 3 (572KB)
© The Foundation for Science and Technology
10 Carlton House Terrace
London SW1Y 5AH
Tel: 020 7321 2220 Fax: 020 7321 2221