Can both TEFL and TESOL be on the same certificate?

Employers generally state that a TEFL TESOL certificate from a UK centre is preferred in job advertisements.

The course covers teaching English as a foreign language and teaching students who use English outside the classroom.
A certificate that lists both TEFL and TESOL simultaneously will enhance a teacher's ability to find employment.
TEFL is excellent for working in Asian countries, and English teachers are top-rated and in demand.
TESOL - for work in English-speaking countries, for example, where many courses for immigrants and English teachers are also in demand.
In other words, a TEFL TESOL certificate will open doors for you worldwide.