You can use Google Scholar to import resources into your Mendeley library. In order to do that, follow these steps:

• Go to Google Scholar by typing https://scholar.google.co.za/ in your Chrome browser
• Type a keyword or keywords into the search bar

• Click on search
• Click on the Mendeley image top of browser

• A pop-up will open displaying all items found (first page of search)
• Click in the boxes next to all literature you want to import into Mendeley

• Please note that PDF files will be imported as well (see red indicator next to third resource I have clicked to be imported)
• Click on Save XXX items (top corner of pop-up)
• Wait until all of them are imported

• Colour changes to green to indicate that all selected resources were imported
• Will state that it saved xxx items (see top corner of pop-up)
• Scroll down in browser and select another page of the web search results

• Repeat previous steps to import more resources
• Check if the resources was imported into Mendeley

I found using Google Scholar to import resources an excellent affordance of Mendeley!

Please feel free to leave a comment.