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