Perhaps you should try some spelling variations:
"developing computation using computer program" » "developing computational using computer program" (Expand search), "developing population using computer program" (Expand search), "developing communication using computer program" (Expand search), "developing computations using computer program" (Expand search), "developing computation in computer program" (Expand search), "developing composition using computer program" (Expand search)
"using model pym python programming" » "ising model pym python programming" (Expand search), "using modis pym python programming" (Expand search), "using mobile pym python programming" (Expand search), "using model pytm python programming" (Expand search), "using model pdm python programming" (Expand search), "using model pom python programming" (Expand search), "using model pm python programming" (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: "((\"developing computation using computer program\") OR (\"using model pym python programming\"))~".
• Removing quotes may allow a broader search: (( developing computation using computer program ) OR ( using model pym python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("developing computation using computer program") OR ("using model pym python programming"))*.