As a novice freelance writer, you’ll need to get some experience under your belt before you can start grabbing for lucrative writing gigs. Although many people slag off content mills such as TextBroker (which turn out bulk content and don’t pay very much), students shouldn’t ignore them as they are a place to earn guaranteed money (even if it’s rather low money).
Most companies that hire for search engine evaluation have multiple projects available to work on, so the exact work you do might vary. However, search engine evaluation in the traditional sense involves analyzing queries that regular people like you and me might type into Google or Bing search and then determining the best possible results to match up to that query so that users have the best experience possible using a search engine.
Why is this so? An inadequate and/or failing K-12 public education system since about 1966 results in seriously adverse consequences. We can’t poorly or inadequate educate millions of children without ending up with millions of HS graduates with gaps in their knowledge and cognitive development. One of those consequences is an inability to write well and correctly, along with either a failure to care or the inaccurate belief in their own ability thanks to reforms after 1966 that had teachers giving students awards and praise just for breathing and failing to correct their work for fear of hurting the student’s self-esteem.
These little jobs are done by people who log on to a company’s site and choose tasks, which could be as simple as clicking a link. Amazon's Mechanical Turk is one of the most well-known sites of this type. Also, there are crowdsourcing projects, which are similar to data entry, where companies engage an army of virtual workers to each do one small part of a larger project.