Google SCHOLAR is a subset of the larger Google search engine. It searches only for articles from mostly scholarly sources where the holder of the copyright has allowed internet access.
There is a new scam in academic publishing, sometimes referred to as "predatory journals." These are made-up, online journals that charge authors to publish their articles, but the journals do not have legitimate peer-review, and will publish anything for a price. Often these journal names are closely related to the names of legitimate journals, so be careful. Google Scholar does not have a filter to screen out these "con-job" journals.
You will need a gmail account for this to work.
Use Google’s advanced searches to limit your results to more reliable domains (e.g. .gov and .edu).
To help you evaluate the sites you find:
related: search for related sites, use the word "related" followed by a colon: related:api.org
link: Find out where someone referenced this link on the website: link:wwf.org
v-e-r-y important: there is no space after the colon when using these commands; don't need to put in the "http" or the "www"