Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu moc cao snippets" » "lieu hoc cao snippets", "lieu lon cao snippets", "hieu moi cao snippets", "lieu toc cao snippets", "lieu doc cao 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 moc cao 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 moc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu moc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu moc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.