Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua moi cho snippets" » "lua moi code snippets", "luat moi cho snippets", "cua moi cho snippets", "lua doi cho snippets", "lua moi co snippets", "lua hoi cho snippets", "lua mo cho snippets"
"python using java snippets" » "python using data 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 moi cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua moi cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lua moi cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua moi cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.