Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua duc con snippets" » "cua duc con snippets", "luu duc con snippets", "luat duoc con snippets", "lua duc cong snippets", "lua duc ton snippets", "lua duc cuong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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 duc con snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lua duc con snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lua duc con snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lua duc con snippets"))) or ("locating bug code snippets"))*.