Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu co da snippets" » "lieu so da snippets", "lieu cong da snippets", "lieu hoc da snippets", "lieu co dan snippets", "lieu co dai snippets", "lieu co dau 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 co 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 co da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu co da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu co da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.