Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc doi dan slippers" » "hoc dai dan slippers", "hoc noi dan slippers", "hoc moi dan slippers", "hoc hoi dan slippers", "hoc doi ban slippers", "hoc doi dau slippers", "hoc doi dan slippery", "hoc doi dan grippers"
"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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc doi dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( hoc doi dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc doi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.