Either you're overly sensitive about odors or you need to take your dog to a vet for evaluation. Dogs like humans have their own smell but if your animal is healthy and you clean the house every week it shouldn't be a problem. Does your dog have any sores on it's body, bad teeth & gums, etc.? Take it up with your vet.
Maybe the anal glands need to be emptied. It is common for them to still smell after a bath when this is needed. If you don't know how, you can look it up on the computer or have a dog groomer or the vet do it.
After washing your dog, rinse with a 3:1 solution of water  and vinegar. The vinegar smell will only be temporary [depending on the size of your dog] but it's coat will be beautifully soft and squeaky clean. Vinegar is antiseptic and antibiotic, your dog's skin will benefit as well. Zinc is also a remedy for doggie's bad breath.
Dogs have a natural odor. When you bath them, it's back in a day or two. They are not going to smell "fresh" very long. If you are expecting it /them to smell like a person who is clean, it won't happen. Actually people have a natural odor themselves after a day or two of not bathing, and I am referring to an oil smell and not B.O. I don't know how bad this odor is, but if it is bad, then maybe something is wrong with the dog (internally) or the dog is getting into something or sitting or sleeping on something smelly which is causing the odor.
Diet & infection.
Dogs tend to smell more or less depending on what they eat. Raw fed dogs tend to smell less most often as they are eating their proper diet and thus aren't having body chemistry balance issues.
Infection can be bacterial or yeast/fungal. Diet can exacerbate it, but can also be because of breed, environment or simply just exposure that took root. Check for rash, hives, pimples or sores on the dog's skin. That would be everywhere, underside, ears, back etc.
What kind of dog do you have? Is it indoor or outdoor? And what products have you been using?
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