Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao van lua slippers" » "dang van lua slippers", "dao van luan slippers", "dao van lu slippers", "dao van luc slippers", "dao van lua slippery", "dao van 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: (((("dao van 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: (((("dao van lua slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao van lua slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao van lua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.