Build up and Make headway

Build up verb - To become greater in extent, volume, amount, or number.

Make headway and build up are semantically related. In some cases you can use "Make headway" instead a verb "Build up".

Make headway verb - Obtain advantages, such as points, etc..

Build up and make headway are semantically related. Sometimes you can use "Build up" instead a verb phrase "Make headway".