Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lua hoc dao snippets" » "luan hoc dao snippets", "luc hoc dao snippets", "cua hoc dao snippets", "lua hoc dan snippets", "lua hoc cao snippets", "lua hoc dai snippets", "lua hoc dao 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"lua hoc dao snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( lua hoc dao snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("lua hoc dao snippets"))) OR ("locating bug code snippets"))*.