'sufficient research' is correct and usable in written English.
You can use it when you want to emphasize that a certain task requires enough research or investigation to be carried out properly. For example, "In order to develop a successful marketing strategy, it is necessary to do sufficient research into the target audience."
In both those cases, those species were introduced without sufficient research.
Without sufficient research or evidence, the claims and arguments we make may come across as naïve or ill-founded.
Sufficient research had yet to be carried out in the US, she said, "but you can easily infer that they fall into the same category of marginalisation there".
"There are concerns about whether the firm has done sufficient research about potential targets," insists Zhu Lei of Jiaotong University in Shanghai.
Until we have sufficient research to shed light on their safety, reducing the body burden of pesticides and other pollutants is a reasonable goal.
But when it came to "The Yards," a drama about family and corruption set in the vast New York subway yards, it would seem that Mr. Wahlberg had already done sufficient research.
Jon Gregory's advice is make sure you stay well away from questions that show you weren't listening earlier in the interview, or that you really haven't done sufficient research.
They say there has not been sufficient research to determine whether oil sands could corrode half-century-old pipelines more quickly than crude oil, and whether special precautions must be taken if oil sands leak into the environment.
After an oil centrifuge rotor the scientists were experimenting on cracked under extreme pressure because they hadn't carried out sufficient research, Obeidi profusely apologized to Kamel, who, he writes, "only stared at me with a look of such menace that I instinctively took a step backward".
Providing sufficient research funding will enable Japanese scientists to respond to the country's changing landscape.
Many of these bridges are trapezoidal in section, a shape which has not attracted sufficient research in the past.
