Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong so thao slippers" » "cong san thao slippers", "cong hoa thao slippers", "cong soan thao slippers", "cong hoi thao slippers", "cong so thao slippery", "cong so thao 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 so thao 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 so thao slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong so thao slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong so thao slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.