Perhaps you should try some spelling variations:
"advanced simulation in computer program" » "advanced modulation in computer program" (Expand search), "advanced calculation in computer program" (Expand search), "advanced simulation and computer program" (Expand search), "advanced simulation _ computer program" (Expand search)
"data visualization in learning program" » "data visualization and learning program" (Expand search), "data visualization of learning program" (Expand search), "data visualization _ learning program" (Expand search), "data visualization in learning programme" (Expand search), "data visualization in learning problems" (Expand search), "data visualization in learning process" (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: (("data visualization in learning program") OR ("advanced simulation in computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data visualization in learning program\") OR (\"advanced simulation in computer program\"))".
• Removing quotes may allow a broader search: (( data visualization in learning program ) OR ( advanced simulation in computer program )).
• Adding a wildcard symbol may retrieve word variants: (("data visualization in learning program") OR ("advanced simulation in computer program"))*.