Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dan duoc slippers" » "doi da duoc slippers", "doi dat duoc slippers", "doi dan quoc slippers", "hoi dan duoc slippers", "doi ban duoc slippers", "doi dau duoc slippers", "doi dan duoc slippery", "doi dan duoc 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 duoc 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 duoc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dan duoc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dan duoc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.