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