Once you have thought of some alternate terms that mean the same or similar things, you can combine them with OR to conduct a search that brings back any one of those words. For example:
If you use the multiple search boxes, it will automatically combine them with the word AND. This means you must have both terms. Here is an example of combining the two in a database's search box:
The above search will bring back articles that have one of the words microplastic(s) OR microfiber/microfibre(s). In addition, each article will have to have at least one of the following words: textile(s), apparel, fabric(s), or clothing. There can be any combination between these two groups, but there has to be one term from each.