Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khan dam cat snippets" » "thanh dam cat snippets", "chang dam cat snippets", "khanh nam cat snippets", "khan dam chat snippets", "khan am cat snippets", "khan dam 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: (((("khan dam cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khan dam cat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khan dam cat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khan dam cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.