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