"express wish" is correct and can be used in written English.
It is a phrase used to indicate that a person desires something. For example, "I express my wish that everyone will enjoy the holiday season in peace."
The king appointed the ministers, but it was difficult for them to govern against the express wish of the chambers.
At the express wish of the family, the event on Monday night will go ahead, as a chance for the ensembles he had worked with to pay tribute.
Downing Street said last night that Britain's 7,000 troops were in Iraq "at the express wish of the democratically elected Iraqi government", and under a UN mandate.
When their loved ones die, 40% of Britons refuse to let their organs be removed, even if that is the express wish of the deceased.
But in a statement to The A.P. she said that risk to the women "must be balanced against their clear and express wish to tell their stories".
The second charge alleged Assange "sexually molested" Miss A by having sex with her without a condom when it was her "express wish" one should be used.
It is very beautiful because everybody can express wishes.
Classically poetic in composition, the couplets would express wishes for good fortune, long life, many friends, and the like.
The optative is used to express wishes or exhortations and is never used with the second person.
Its frontiers were to be formed in accordance with the freely expressed wish of the inhabitants.
Gilmore himself confounded his would-be saviours who were bringing up constitutionality issues in the new Utah death penalty law with his openly expressed wish to die.
