Treatment in Ireland

My name is Yi Du, I am from China. I have been resident in Ireland for 18 years.
My mother is diagnosed lung cancer 2 weeks ago, the whole family is in a huge depression and I went back to her immediately to support her.
Saying “diagnosis” I mean my mother feels a chest pain one day and went to see a doctor, then she is taken to do a chest CT. The image of CT shows a big shadow in the her lung. The doctor says it’s lung cancer.
In China, cancer is a death sentence, incurable illness which cost people everything to survive a bit longer.
She is giving up when she heard about her illness. I convinced her and promise I’ll try my best to find a treatment for her.
Then we did a pet-CT, the image shows the tumour has transferred to nearby tissue, pleur and ribs.
Then we did a pneumococcal biopsy(lung puncture), but the doctors failed to take enough biopsy. We did it again and third time. I was told to get a result yesterday and they said they could not identify what type of lung cancer it is and let me wait for longer. I was very disappointed about the doctors.
I decided to bring my mother to Ireland and get treatment here. I found a company named oncologica that do both target therapy and immunotherapy. I am very interested. I wonder if my mother will get routine histology biopsy taken in Dublin and give the biopsy to oncologica.

I sincerely appreciated if anyone could tell me the procedure of treating cancer in Ireland. Please instruct me what should I do next.
Yi