Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat cau den snippets" » "luat dau den snippets", "lua cau den snippets", "luat cac den snippets", "luat cap den snippets", "luat cau de snippets", "luat hau den 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: (((("luat cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat cau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat cau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.