Perhaps you should try some spelling variations:
concurrent programs » current programs, current program
function chapter » functions chapter, fiction chapter, foundation chapter
reaction chapter » action chapter, creation chapter, reactor chapter
creative chapter » creation chapter, creativity chapter, narrative chapter
deep concurrent » deep recurrent, cfp concurrent, over concurrent

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((function chapter) OR (((reaction chapter) OR (creative chapter)))) deep concurrent programs.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((function chapter) OR (((reaction chapter) OR (creative chapter)))) deep concurrent programs.*".