Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua sang du snippets" » "luc sang du snippets", "bua sang du snippets", "cua sang du snippets", "lua nang du snippets", "lua tang du snippets", "lua hang du 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 (\"lua sang du snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( lua sang du snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("lua sang du snippets"))) OR ("locating bug code snippets"))*.