How to use condition research technology for each time of research when technology stacking is applied in custom scenario?

Even I wanted for each time when I applied 6 times of technology stacking, the condition research technology will be applied only after all 6 times of researches are finished. Is there any solution for applying effect using the condition for each time?

You could use a variable maybe?

That gave no effect, although I apply variable it just gets one time loop and research technology will stop with the first time of the loop.