litsearchr is an R package to partially automate search term selection for systematic reviews using keyword co-occurrence networks. In addition to identifying search terms, it can write Boolean searches and translate them into over 50 languages.
There is no database logic behind putting quotes around single words when exactphrase=TRUE. To reduce the character length of searches, add in a function that checks for ngrams at this step and don't quote unigrams.
There is no database logic behind putting quotes around single words when exactphrase=TRUE. To reduce the character length of searches, add in a function that checks for ngrams at this step and don't quote unigrams.