"make continuous efforts" is correct and usable in written English.
It can be used as a way to imply that one should keep trying even when obstacles arise. For example, "If you want to succeed, it is important to keep working hard and make continuous efforts."
During the last five years, several groups have made continuous efforts to improve this class of compounds, designing more selective compounds or compounds with multiple capacities.
Over the past five years, the International GNSS Service IGSS) has made continuous efforts to extend its service from GPS and GLONASS to the variety of newly established global and regional navigation satellite systems.
The pharmaceutical and health industry makes continuous efforts to improve and increase the available variety of pharmaceutical treatments.
Belle Chen stated in a memo that Jean Kasem had made "continuous efforts to ensure that Mr. Kasem was medically supervised". Relocating him to Washington was an effort to protect his privacy, Chen said.
Since 2000, the China government and Ministry of Health have made continuous efforts and have issued a series of legislation to promote maternal health services and improve the inequality in maternal health services utilization in less-developed western rural areas.
· Skills: Successful organizations make continuous learning a core competency.
These results imply that if health organizations decide to use Wikipedia to inform the public during a large-scale Salmonella outbreak, they should make a continuous effort to continuously monitor the relevant articles and to improve their quality.
When it builds up it has the potential to be deeply unpleasant and you need to make a continuous effort to keep it under control.
