Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu tao led snippets" » "lieu tai led snippets", "lieu dao led snippets", "lieu bao led snippets", "lieu tao lien 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 tao led 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 tao led snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu tao led snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tao led snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.