"excellent cooperation" is a correct and usable phrase in written English.
You can use it to describe a situation where two or more parties are working together in a very successful and effective way. For example, "The merger between the two companies was successful due to the excellent cooperation of their teams."
At the news conference yesterday, Commissioner Kelly said, "We have excellent cooperation and communication with Washington".
American officials in Washington have confirmed at Congressional hearings years of excellent cooperation with their counterparts in Liechtenstein.
"but if you look at the whole system of cooperation, it's an excellent cooperation -- in all dimensions".
"We worked closely with the Pakistani government and had excellent cooperation from them in the repatriation," Mr. Bergeron said.
"We have an excellent cooperation with the N.H.L., and it is our intention to keep it that way".
A CIA spokesman said those committees had been chosen because "the Bin Laden raid was the product of excellent cooperation between the intelligence community and the US military".
Letta, as the supervising authority over Italy's intelligence services, assured the Ambassador of a continuation of our ROME 00000001 002.2 OF 003 already excellent bilateral cooperation on the issue.
A cable from the American Embassy in Tripoli briefing Secretary of State Condoleezza Rice before a 2008 visit called Libya "a strong partner in the war against terrorism," noting "excellent" intelligence cooperation and specifically lauding Colonel Qaddafi's efforts to block the return of Libyan militants from Afghanistan and Iraq and to "blunt the ideological appeal of radical Islam".
The pre-publication history for this paper can be accessed here: http://www.biomedcentral.com/1471-2334/13/378/prepub Authors would like to thank the Plateforme de Génomique Fonctionnelle, Unité d'Appui Technique à la Recherche Scientifique, Centre National de la Recherche Scientifique et Technique (Morocco) for their excellent technical cooperation.
Cohen, in his letter to the ambassador, said: "Like you, I am keen that the excellent degree of cooperation on various ongoing BBC projects in your country continues.
"Ambassador Castro noted the excellent degree of cooperation various ongoing BBC projects continue to enjoy in Argentina, stressing her desire for this to remain the case.
