Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi cho can snippets" » "doi chi can snippets", "doi co can snippets", "doi pho can snippets", "doi cho cac snippets", "doi cho phan snippets", "doi cho cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"doi cho can snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( doi cho can snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.