Ok guys I have alarm bells as well. But I'm going to just "assume" that this isn't a troll, and it is a person that has been handed a dog, they know nothing about how to look after it, let alone nutrition.
That being said Ok Pacho if you are trolling, and this is amusing, then I'm glad I'm about to amuse you. If you are serious and your english is just not the best then please pay attention to what I'm going to say.
Firstly It wasn't fair of your neighbour to just dump the dog on your lap, and expect you to care for it.
Dogs cannot just eat nachos. A dog needs a balanced diet, that contains all the vitamins, minerals, fibre, and protein needed to keep him/her strong, happy and healthy.
You need a good kibble for the dog, good healthy vegies, and plenty of raw meaty foods.
You need to ask this in the health section of the forum, and do plenty or reading up. Do a search in google for Dog nutrition.
Thats all I can help you with, because I don't have anymore info concerning your problem.
Ok all that said, I will repeat, if you are a troll, then have a giggle at my advice. I guess theres worse things in this world than amusing a troll
If you are genuine I wish you all the very best of luck