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