Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu dao da snippets" » "lieu nano da snippets", "lieu va da snippets", "lieu tai da snippets", "lieu dao dan snippets", "lieu dao do snippets", "lieu dao va 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: (((("lieu dao da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu dao da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu dao da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu dao da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.