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