Taxonomy Term title & description

How can i set custom values for this in v.0.18?

Say a key named “Android”, this is what shows up in title on Taxonomy Term, but if i want a difrent title like “Android - My Company Name”?

I could use this:
<title>{{ .Title }} - My Company Name</title>

But if i some times want somthing else like “Android - Lorem - My Company Name”?

Are you trying to have different titles on different pages? If so, you can use block templates.