Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu hon don snippets" » "lieu hoc don snippets", "lieu lon don snippets", "lieu ho don snippets", "lieu hoa don snippets", "lieu hon loan snippets", "lieu hong son 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 hon 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 hon don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu hon don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu hon don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.