"targeted campaign" is correct and can be used in written English.
It is usually used to refer to a type of marketing strategy that specifically targets a certain type of customer. For example, "The company ran a targeted campaign to try and increase sales in the Midwest region."
This year, the Ghostbusters star Leslie Jones was driven off the network after a sustained, targeted campaign of racist and sexist abuse.
Today, Cambridge Analytica's central offering to US politicians is to enable them to use the OCEAN scale in shaping highly targeted campaign messages.
Nearly eight out of ten believe the use of their social media records for targeted campaign advertisements could undermine free and fair competition between political parties.
Her previous successes in promoting choice and privatization via targeted campaign contributions to state legislators in selected states don't transfer to the broader national playing field.
The Clinton forces are running a data-driven and carefully targeted campaign designed to turn out a slightly modified version of the Obama coalition: liberals, minorities, young people, highly educated voters, and suburban women.
The Patna bombings targeted campaign rallies by Narendra Modi, leader of the Hindu nationalist Bharatiya Janata party (BJP), which went on to win a landslide victory in elections this May.
Lord Ashcroft is one of the Conservative party's biggest donors and has used his money to fund a highly targeted campaign to win key marginal constituencies for the party.
Researchers suggest the mayor of London should launch a domestically targeted campaign, entitled London is Yours, to win the hearts and minds of those living outside of the M25.
Given tight budgets, a joint, targeted campaign made sense.
Targeted campaign-style outreaches and mobile services have been used successfully during specific times of the year, such as during school holidays and the end of the harvest season.
In 2016, that meant, among other things, making the American electorate more connected to white supremacists, armed militias, Macedonian fake-news merchants, and micro-targeted campaign ads purchased in rubles.
