Perhaps you should try some spelling variations:
"variable diffusivity neural coding program" » "variable diffusivity terms coding program" (Expand search), "variable diffusivity excel coding program" (Expand search), "variable diffusivity neural cloning program" (Expand search), "variable diffusivity neural loading program" (Expand search), "variable diffusivity neural cooling programs" (Expand search), "variable diffusivity neural modeling program" (Expand search), "variables diffusivity neural coding program" (Expand search)
"advanced python programming using program" » "advanced python programming and program" (Expand search), "advanced python programming an program" (Expand search), "advanced python programming computing program" (Expand search), "advanced method programming using program" (Expand search), "advanced path programming using program" (Expand search), "advanced symphony programming using program" (Expand search), "advanced python programming housing program" (Expand search), "advanced python programming nursing program" (Expand search), "advanced python programming aging program" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"variable diffusivity neural coding program\") OR (\"advanced python programming using program\"))~".
• Removing quotes may allow a broader search: (( variable diffusivity neural coding program ) OR ( advanced python programming using program ))~.
• Adding a wildcard symbol may retrieve word variants: (("variable diffusivity neural coding program") OR ("advanced python programming using program"))*.