Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong khan ma slippers" » "cong khanh ma slippers", "cong nhan ma slippers", "cong phan ma slippers", "cong than ma slippers", "cong khan maaz slippers", "cong khan ma slippery", "cong khan ma 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 khan ma 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 khan ma slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong khan ma slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong khan ma slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.