Perhaps you should try some spelling variations:
peptone complexity » tone complexity (Expand search), sentence complexity (Expand search), response complexity (Expand search)
sampling method » sampling methods (Expand search)
using sampling » using subsampling (Expand search), using saline (Expand search), using samples (Expand search)
method python » method method (Expand search), python python (Expand search)
coder » poder (Expand search), codes (Expand search), coded (Expand search)

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

• Removing quotes may allow a broader search: (( coder peptone complexity control program ) OR ( using sampling method python programming ))~.