| Subject | English | Portuguese |
| comp., MS | search engine | motor de busca (A program that searches for key words in documents, databases, Internet content or other files) |
| comp., MS, Braz. | search engine | mecanismo de pesquisa (A program that searches for key words in documents, databases, Internet content or other files) |
| IT | search engine | motor de busca |
| IT | search engine | buscador |
| econ. | search engine | motor de pesquisa |
| IT | search engine optimisation | otimização para motores de pesquisa |
| comp., MS, Braz. | search engine optimization | otimização do mecanismo de pesquisa (The act of modifying the pages of a Web site so that its content is more easily discoverable by Internet search engines) |