BASE (operated by Bielefeld University Library) is one of the world’s most voluminous search engines for academic web resources.
BASE provides more than 100 million documents from more than 5,000 sources with access to the full texts of about 60% of the indexed documents for free (Open Access).
Stellenbosch University repository and journals hosting platforms – SUNScholar and SUNJournals – are also indexed in BASE.
Try it out at https://www.base-search.net/