Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ngoc lua slippers" » "tran ngoc lua slippers", "van hoc lua slippers", "van nghe lua slippers", "van ngon lua slippers", "van ngoc tuan slippers", "van nuoc luan slippers", "van ngoc lua slippery", "van ngoc lua 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: (((("van ngoc lua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ngoc lua slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ngoc lua slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ngoc lua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.