Factors that influence non compliance with hand hygiene

I submitted previously a literature review (my paper document) and it is needed to complete to submit again as research proposal. I have included only 3 studies in my literature review and it is required to add another 5 studies of total 8 studies. my proposal is under qualitative approach and make sure not mix with quantitative. Make sure all included studies are qualitative and all sources and references going to use not older than 10 years. I have attached an exemplar that you can follow same steps and another document contains the assignment guidelines. my paper was submitted with total of 1500 words and to complete the proposal a total of minimum 3500 words is required.