Rather combining keywords by trial and error, it is more efficient to build a basic query which logically links all the terms of the concept plan according to the operators authorized by the search tool being used.

Parentheses are used to group all the keywords associated with a concept.

(Security OR Risk*)
AND
(Transportation* OR Train* OR Boat* OR Pipeline*)
AND
("Hazardous material" OR "Dangerous goods" OR Oil* OR Hydrocarbon* OR "Shale gas")
AND
(Lac-Mégantic OR Québec* OR Canada*)

Now that the keywords are linked together using logical operators, the next step is to run the search query and take a look at the results. This is the focus of step 6!

Infosphère / https://infosphere.uqam.ca