Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong li va slippers" » "cong ti va slippers", "hong li va slippers", "cong hai va slippers", "cong lai va slippers", "cong ly va slippers", "cong le va slippers", "cong li va slippery", "cong li va 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: (((("cong li va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong li va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong li va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong li va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.