Best format for Title Tag with Multiple Keyword Combinations

If I want to target "keyword1 + location1", "keyword1 + location2", "keyword2 +location1" etc is the best format for the title tag:

keyword1 keyword2 | location1 location2
or
keyword1 location1, keyword2 location2, keyword1 location2, keyword2 location1

Specifically, for a new website I am about to do, my current title tag is

"Security Company Dog Handlers Suffolk Norfolk Essex London Hertfordshire"

Would adding a "|" tell the search engines that this means "security company suffolk", "security company essex", "dog handlers suffolk", "dog handlers essex" etc??

 

based on your description IMO "keyword1 + location1", "keyword1 + location2", "keyword2 +location1" is best

 

I use "|" to but not as my as too many... I stick to maximum of 3 keywords only.

 

I use "-" to seperate keywords.It looks good to me.

 

Many thanks all - does anyone else have any experience of tackling 2 different keywords and several locations for a page? (The customer doesn't want to pay for multiple pages to tackle one kwyrod + county per page.)

 

Keyword1, location1 | keyword2, location 2 is a good option for title tags & keywords

 

I think keyword1 location1, keyword2 location2, keyword1 location2, keyword2 location1 is best for your site.

 

I used below format:
keyword1 location1 keyword1 location2 keyword2 location1

 

I think keyword1 location 1, keyword 2 location 2 will be best.