Perhaps you should try some spelling variations:
"using computational complexity computer program" » "using computational complexity complex program" (Expand search), "using computational complexity computacao program" (Expand search), "using computational complexity competences program" (Expand search), "and computational complexity computer program" (Expand search)
"based computation _ coding program" » "based computational _ coding program" (Expand search), "based competition _ coding program" (Expand search), "based compilation _ coding program" (Expand search), "based computation _ cloning program" (Expand search), "based computation _ loading program" (Expand search), "based computation _ cooling programs" (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: "((\"based computation _ coding program\") OR (\"using computational complexity computer program\"))~".
• Removing quotes may allow a broader search: (( based computation _ coding program ) OR ( using computational complexity computer program ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation _ coding program") OR ("using computational complexity computer program"))*.