Perhaps you should try some spelling variations:
"lua cho cong snippets" » "lua cho code snippets", "lua cao cong snippets", "lua cua cong snippets", "lua cac cong snippets", "lua chon cong snippets", "luat cho cong snippets", "luc cho cong 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 cho cong 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 cho cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua cho cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua cho cong snippets"))) or ("locating bug core snippets"))*.