Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"duc hat dan slippers" » "duc phat dan slippers", "duc hau dan slippers", "duc ha dan slippers", "duc hat van slippers", "duc mat dan slippers", "duc nhat danh slippers", "duc hat dan slippery", "duc hat dan grippers"

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: (((("duc hat dan slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc hat dan slippers") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( duc hat dan slippers ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc hat dan slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))*.