Perhaps you should try some spelling variations:
chains reprogramming » cells reprogramming (Expand search), and reprogramming (Expand search), timing reprogramming (Expand search)
protein complex » protein coupled (Expand search)
complex chains » complex strains (Expand search), complex changes (Expand search), complex class (Expand search)
lower protein » low protein (Expand search), liver protein (Expand search), copper protein (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using codigo » using indigo (Expand search), using coding (Expand search), using codium (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( lower protein complex chains reprogramming ) OR ( using codigo python python programming ))~.