Perhaps you should try some spelling variations:
"lua don chat snippets" » "lua don code snippets", "lua doc chat snippets", "lua cong chat snippets", "lua dinh chat snippets", "la don chat snippets", "lua doi chat snippets", "luan dong chat 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("lua don chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lua don chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua don chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua don chat snippets"))) or ("locating bug core snippets"))*.