What is the most effective and efficient method of searching multiple journals for multiple keywords? My goal is to find articles related to invasive species management on a monthly basis. I have a list of species for my region (i.e keywords) and a list of journals. Although I enjoy combing through new issues of each journal, I'm wondering if there is a more automated, and less time consuming method.

I've tried using Boolean operators in Google Scholar, but this limits the search to 2019 (not monthly) and isn't journal specific. I have also explored some programs (e.g. Stork), with limited results.

Any insight is greatly appreciated. Thanks!
In case the journals are indexed by PubMed ( biomedical literature) and you're not afraid to do a bit of programming, you might want to explore the tools proposed here. You can even download the full Medline database (see here) and search through it locally, in case that's more convenient.