Finding specific types of manuscripts of a journal I am considering writing an article to a journal. This journal (Bioinformatics) accepts different manuscripts:


Original Papers
Discovery Notes
Application Notes
Reviews
Letters to the Editor
Conference Papers


In a different topics:


Genome analysis
Sequence analysis
Phylogenetics
Structural Bioinformatics 
Gene Expression
Genetics and Population Analysis
Systems Biology
Data and Text Mining
Databases and Ontologies
Bioimage Informatics


In order to improve my article I would like to read similar papers of the same topic and type of manuscript. How can I search for Application Notes of System Biology?

If filtering by topic is not possible, at least filtering by type of manuscript would be desirable.

I can't ask my advisor for guidance, because he doesn't know the field. I tried using Google Scholar, but it doesn't retrieve the type of manuscript or the scope of each manuscript when I use the quotes. The advanced search of that journal doesn't include the options to filter by manuscript and scope. Pubmed doesn't list the types of manuscripts of this journal.
First, try the Advanced Search interface of the specific journal or publisher. In this  case:


Open https://academic.oup.com/bioinformatics/advanced-search.
Under "Find a specific article", select Bioinformatics and press the Search button (the one in the first row).
One the left, under "Article type", select the desired type, e.g., "Brief report".
Again on the left, under "Section", select the desired section, e.g. "Systems biology".


Now only articles of type Brief report, in the section Systems biology are displayed.

If such a search interface is not available or gives irrelevant results, there are more general approaches:


In Scopus Advanced Search, use queries in the form:


  EXACTSRCTITLE(Journal Name) AND DOCTYPE(document_type)


You can find the list of possible document types in the help (field code DOCTYPE).
In Google Scholar, try queries in the form (include the quotes):


  source:"Journal name" "Article type"