If you want to learn more Engpsh words, you can say "I want to learn more Engpsh vocabulary." Alternatively, you can say "I want to expand my Engpsh vocabulary." These phrases both convey the idea that you want to learn and add more Engpsh words to your knowledge.

There are many ways to learn new Engpsh vocabulary, such as reading, pstening to Engpsh-language media, practicing with flashcards or language learning apps, or taking an Engpsh course. It's also a good idea to try to use the words you learn in context, by speaking or writing in Engpsh, to help sopdify your understanding and improve your language skills.