Here are some tips that will help get you started.
First things first, decide on a topic. Once decided, you will need to create a research question. Derive search terms using synonyms of that topic. Start using a general database [like the one below]. When you have questions, ask a librarian.
Oxford Advanced Learner's Dictionary by
Understanding library jargon can be difficult for anyone who is not a regular user of the library. The difficulty of understanding library terms is compounded for English as a second-language (ESL) speakers who must process these specialized terms in a language that is not their native one. This Multilingual Glossary is designed to assist ESL speakers, as well as the librarians who work with them. It consists of commonly used terms in academic libraries today." - ACRL Instruction Section