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