Documenting all of your searches, and the decisions behind them, is a very important part of evidence synthesis projects. You will want to use/ adapt a template to keep track of everything you do in terms of searches.
Additional tracking documents:
A handout on common inclusion/exclusion criteria: https://unimelb.libguides.com/sysrev/inclusion-exclusion-criteria
For structured searches, start with the University of Winnipeg Databases. However, you may need to expand your searches, depending on methodology, to include grey literature and other sources.
While searches in Google Scholar are not replicable, and it cannot be used as a database in certain types of methodologies, it can still be a useful tool for finding relevant literature. Google Scholar also uses some of the same Boolean operators, as well as some different ones. (- instead of NOT, and you can remove specific sites from search results using -site: . Adding a tilde ~ will search for similar terms, and AROUND (#) is used for proximity searching. intitle: can be used to search for words in a title.
Systematized searching requires translations of searches (syntax, terms, etc) across different databases. For tips on how to do so: