Perhaps you should try some spelling variations:
"and computational and computational program" » "_ computational _ computational program" (Expand search), "and computational fluid computational program" (Expand search)
"using modis pym python programming" » "using mobile pym python programming" (Expand search), "using modis pytm python programming" (Expand search), "using modis tm python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("and computational and computational program") OR ("using modis pym python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computational and computational program\") OR (\"using modis pym python programming\"))".
• Removing quotes may allow a broader search: (( and computational and computational program ) OR ( using modis pym python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and computational and computational program") OR ("using modis pym python programming"))*.