Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac dan nam slippers" » "cac van nam slippers", "cac dong nam slippers", "cac dinh nam slippers", "cac dan nam slippery", "cac dan nam grippers"
"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: (((("cac dan nam slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac dan nam slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac dan nam slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dan nam slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.