Divide the research questions and write two papers to submit to different journals. In the parts that are the same, reword everything so there will not be any plagiarism.

Thank you Prof for suggestion. Im doing systematic literarure review (SLR) for the paper. Does it mean I can use the same content for method section since SLR require detail explanation how relevant papers was selected for analysis.

I would use a step by step approach. First, write a paper with a clear line, a well-defined research question, meaningful results. And then elaborate on that in a second paper where you can clearly mention you first paper and where you clearly identify the added value of the second paper. If you are not tackling the same question in both papers and if you can clearly articulate both, it should work and be quite interesting.