Perhaps you should try some spelling variations:
"lua ca cham snippets" » "lua ca code snippets", "lua cau cham snippets", "lua va cham snippets", "lua co cham snippets", "lua cua cham snippets", "qua ca cham snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") OR ("lua ca cham snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua ca cham snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua ca cham snippets"))) or ("locating bug core snippets"))*.