Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"su han code snippets" » "su han che snippets", "su han cosh snippets", "su phan code snippets", "su hoan code snippets", "su van code snippets"
"locating bug core snippets" » "locating bug code snippets"

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: "((((\"python using java snippets\") OR (\"su han code snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( su han code snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("su han code snippets"))) OR ("locating bug core snippets"))*.