You need to use a lot of rune offerings if you're looking for a specific stat on a specific rune type. It could take hundreds. So instead, just use the offerings you have and consider the value of each purple or orange rune you get. If it looks promising (good primary), empower it and see what happens to the tertiaries. If you start with an orange rune and you're really lucky, you get raise a single tertiary stat 4x, bringing it as high as a primary. Eventually, you'll find some good runes.
If you spend a lot of money on this game (like, thousands of dollars a month), you can buy enough crystal and stone shrines to get the exact runes you want. Otherwise, throw all your offerings in the wooden shrine and hope. Buy more offerings from shops, do ludicrous mode in expedition, and save up stamina so you can use a ton of it with a double drop on. That will give you even more offerings to gamble with.
Here's my collection of rune advice, if you're interested: http://zioth.com/dragonsoul/runes