"improve the cost effectiveness" is correct and usable in written English.
You could use the phrase in a sentence such as "We should implement strategies to improve the cost effectiveness of our operations."
These findings could help corn producers improve the cost effectiveness and efficacy of their weed management programs.
We hope that developments in new technology and future innovation will improve the cost effectiveness of these measures over time and that this can drive consumption down further to an average of 120 l/p/d per day by 2030.
Glazing was found to improve the cost effectiveness of the system but further work was needed to deliver higher energy savings.
These findings could help cotton producers improve the cost effectiveness and efficacy of their weed management programme under different N application rates.
This new EAFP protocol is expected to improve the cost effectiveness of the generation of hexaPEGylated Hb, PEGylated albumin, and PEGylated RBCs as new PEGylated therapeutics.
To improve the cost effectiveness, effort should focus on EXII and CMIII.
It is desirable to develop cost-effective drilling processes for Titanium alloy and improve the cost- effectiveness of currently-available processes.
This could improve the cost-effectiveness of treatment, while maintaining clinical effects.
Certainly, plenty of health-care dollars are wasted, and there are sensible changes to the system that would improve the cost-effectiveness of care.
Tendering conservation contracts is one possible way to improve the cost-effectiveness of PES schemes.
Omitting identifications of most species will improve the cost-effectiveness of monitoring programs.
