Perhaps you should try some spelling variations:
"testing simulation using java programming" » "testing situation using java programming" (Expand search), "casting simulation using java programming" (Expand search), "teaching simulation using java programming" (Expand search), "testing simulation using and programming" (Expand search), "testing simulation using based programming" (Expand search), "testing simulation using goal programming" (Expand search)
"using codigo python python programming" » "using codigo pythons python programming" (Expand search), "using codigo piton python programming" (Expand search), "using codigo pitons python programming" (Expand search), "using indigo python python programming" (Expand search), "using coding python python programming" (Expand search), "using codium python 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: (("testing simulation using java programming") OR ("using codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"testing simulation using java programming\") OR (\"using codigo python python programming\"))".
• Removing quotes may allow a broader search: (( testing simulation using java programming ) OR ( using codigo python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("testing simulation using java programming") OR ("using codigo python python programming"))*.