Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc han dan slippers" » "hoc phan dan slippers", "hoc hanh dan slippers", "hoc chan dan slippers", "hoc nhan dan slippers", "hoc han danh slippers", "hoc shan dan slippers", "hoc han dan slippery", "hoc han 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 han dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( hoc han dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc han dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.