Use this section of the User Guide to learn more about advanced search techniques and search syntax and how to choose the best approach for each query. Choosing the right technique is about understanding your goals.
If your goal is to have higher record recall, then searching lung cancer may be the right technique. If your goal is to have more precise results, then searching “lung cancer” may be the right technique. Or maybe finding a middle ground is the best approach, in which case, searching “lung cancer”~4 may be the right technique.
There is no one-technique-fits-all-searches, and this section will help you assess your goals and find the approach that’s best for your search.
Available search methods in the iSearch COVID-19 Portfolio are:
It is possible to create complex searches using the iSearch COVID-19 portfolio field names listed on the Fields page of the user guide.