Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu tu doan snippets" » "lieu tai doan snippets", "tieu thu doan snippets", "kieu thu doan snippets", "lieu du doan snippets", "lieu tu dan snippets", "lieu tap doan 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 tu doan 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 tu doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu tu doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tu doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.