The phrase "a more aggressive manner" is correct and usable in written English.
It can be used to describe a way of behaving or acting that is more forceful or assertive than usual.
Example: "In negotiations, adopting a more aggressive manner can sometimes lead to better outcomes."
Alternatives: "a bolder approach" or "a more assertive style".
As one of the most ethnically diverse nations in Africa, we Sudanese have the responsibility to address the ethnic militia problem with greater clarity and in a more aggressive manner, with or without international support.
But now they are initiating more intimate contact, sometimes even sex, in a more aggressive manner, according to the anecdotal accounts of many counselors, psychologists, magazine editors and teenagers.
Most likely this will regulate voltage in a more aggressive manner to prevent the issues.
Occasionally, hemangiomata may behave in a more aggressive manner, causing pathologic fracture or even symptoms/signs of nerve compression.
"You're seeing all the economic data coming out of Europe and the U.K. and realizing that the central banks might act in a more aggressive manner than we might have thought," remarked Scullion.
These are found in older postmenopausal women, are unconnected with oestrogen, and behave in a more aggressive manner.
While Portugal needs to attack its deficit "in a much more aggressive manner," the country is in a better position than Greece because it has less long-term debt coming due.
"It'll be reported in a much more aggressive manner.
Yet with less regulation and less observation, hedge funds can do it in a far more aggressive manner.
At the very least, we can agree that headdresses, even cultural appropriation, are transgressions of ignorance, not meant to cause harm, but what about when outrage is provoked in a much more aggressive manner?
As president, both Clinton and Trump would utilize the AUMF in a far more aggressive manner than Obama Clintonn's "neocon" foreign policy could easily lead to the U.S. military becoming even more overstretched.
