How can I search two options from the same 'Category'? Advanced Search Help.

[rhetoricmonkey]

I'm trying to do a search for games that have two of the same advanced search 'Category' options, but when I do, steams search seems to follow rules that will not allow me to search for two features from the same 'Category'. To show what I mean here's some examples of what I've tried to do so far:

This first example as seen below works fine, it is for 'Games' with 'Full controller support' which in my address bar translates 'Games' to '#category1=998' and then 'Full controller support' translates to '#category2=28', each search option is seperated by an ampersand in url form.

http://store.steampowered.com/search/#category1=998&category2=28

In this next example I want to search for 'Games' that have 'Full controller support' and 'Steam trading cards'.

http://store.steampowered.com/search/#category1=998&category2=28&category2=29

It does not work. What I want to know is how I can search for something with two options from the same 'Category'. I've also tried '#category3=29' out of wishful thinking. Does anyone know of a way to search using multiple terms that produce one set of results? I'd prefer to not have to compare two searches one to another. Maybe a 'compare results' would be a good feature suggestion. Thanks in advance for any constructive feedback. I don't have to have games that have 'Full controller support and 'Steam trading cards', those are only meant to be examples of two options from the same 'Category'.

[rhetoricmonkey]

Originally posted by Fred:

You are overriding a single variable twice. Within the current system it is not possible what you are trying to do.
Perhaps forward the suggestion to Steam Support.

Fred, I will end up doing that if no one can offer some form of actual help. I've posted this in the New Player forum, now the Help and Tips, next will be in the suggestions area. I'm aware of what I am doing, but I was hoping someone with a superior knowledge of Valve's search could point me in the right direction. Your suggestion to me is the conclusion I've drawn and one that I'm likely to commit to soon. Thanks.