"more efforts are required" is correct and usable in written English.
You can use this phrase when you are emphasizing that an extra amount of effort is necessary. For example: "We have made some progress, but more efforts are required to reach our goals."
Since both laws are on the books and contradict each other, more efforts are required to train judges and law enforcement personnel to understand how to handle human trafficking cases, and rights workers believe the penal code article ought to be rescinded.
International lenders are very close to wrapping up talks with Greece to unlock a further €8.1 billion in loans, though more efforts are required from Athens to overhaul its economy, the European Union's top economic official said Sunday, a day before euro zone finance ministers meet to decide on the aid.
More efforts are required to apply this chemical cardiac reprogramming approach to patient cells.
More efforts are required to identify chemical substitutes for OCT4 in human cell reprogramming.
More efforts are required to develop better delivery methods and improve the conversion efficiency and cell maturity.
Nevertheless, these obtained results are still far away from the practical application, so more efforts are required.
Thus, as previously mentioned, if key stakeholders were ignored or underrepresented in the process, it would seem that more efforts were required in order to disseminate the results at the end of the process.
If more effort is required, more discrimination is also needed.
The Teesside report, published by the first research unit in Britain dedicated to the study of the far right and its opposition, says more effort is required to foster greater trust between the Muslim community and authorities.
Mr. Alker, of the Green Building Council, said that although many problems had to be ironed out and a lot more effort was required from the government, the Green Deal still had the potential to succeed.
A bit more effort was required four minutes later when Worcester gave away possession again, but Tomkins made the corner with some comfort, leading the Saracens coach Alex Sanderson to suggest, with six Saracens away with England and three with the Saxons, that busier times lay ahead.
