Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi cac van slippers" » "doi cach van slippers", "voi cac van slippers", "do cac van slippers", "doi cac dan slippers", "doi cac van slippery", "doi cac 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 cac 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 cac van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi cac van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi cac van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.