Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi su can snippets" » "oi su can snippets", "don su can snippets", "voi su can snippets", "doi su van snippets", "doi su cao snippets", "doi su han 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: "((((\"python using java snippets\") OR (\"doi su can snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( doi su can snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("doi su can snippets"))) OR ("locating bug code snippets"))*.