El Desmarque reports the La Liga side's vice-chairman Lorenzo Serra Ferrer admitted he wants to secure Moura's services and Inter Milan's Joao Mario before the European transfer window shuts later this month.
He said: "They [Lucas Moura and Joao Mario] are two great footballers and if we have possibilities we would like to have them.
"But we have to be realistic and know what we can do.
"We try to distribute the economic potential well in order to try to reinforce and improve the workforce.
"We have made six additions, replacing players that last year performed very well, with a brilliant goal, and we think we have improved.
"It will be difficult to match what we did last year."