Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua nam cao snippets" » "cua nam cao snippets", "luc nam cao snippets", "loai nam cao snippets", "lua nam sao snippets", "lua nam giao 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: (((("lua nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua nam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua nam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.