Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat cao danh slippers" » "dat cao dang slippers", "dat cao anh slippers", "dat cau danh slippers", "dam cao danh slippers", "dao cao danh slippers", "dat cao danh slippery", "dat cao danh 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: (((("dat cao danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat cao danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat cao danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat cao danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.