Perhaps you should try some spelling variations:
"code using petri algorithm in" » "code using pet algorithms in" (Expand search), "code using sebi algorithm in" (Expand search), "code using semi algorithm in" (Expand search), "code using petri algorithm and" (Expand search), "code using petri algorithm _" (Expand search), "code using petri algorithm with" (Expand search), "made using petri algorithm in" (Expand search), "coding using petri algorithm in" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (Expand search), "manim 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: (("code using petri algorithm in") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code using petri algorithm in\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( code using petri algorithm in ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code using petri algorithm in") OR ("api python python python programming"))*.