[wemple2]

Ideas already posted are wonderful. Do post neon colored signs...large enough to be seen easily...in English and Spanish...with a clear picture of your baby girl. Watch for ads listing a Yorkie for sale and check each and every one out...you never know. Put up signs in every imaginable public place you can find. I've heard others say to put on the signs that she needs medication...but I think most people will read through this...as it's used all too frequently. I once suggested putting out ads stating you were looking to buy an adult female Yorkie, say under 5 years old. Don't just talk to those that answer the ad...go and see for yourself. If it's not yours, simply say thank you...but she's not exactly what you were looking for. Talk to each and every vet/groomer/pet store/humane society/animal control and ask if they would put up your posters.
I wish you a ton of luck finding your baby. I know it must be terribly upsetting.
And last but not least DO NOT GIVE UP on her...she's out there somewhere...someone knows...and someone will tell. Post a huge reward. And continue to ask for help, most people would be happy to help in this situation...I know I would.