Perhaps you should try some spelling variations:
"trong cua han slippers" » "truong cua han slippers", "thong cua han slippers", "trong ca han slippers", "trong cua nhan slippers", "trong cua hang slippers", "trong cua phan slippers", "trong cua han slippery", "trong cua han grippers"
"dung java java snippets" » "dung va java snippets"
"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: (((("trong cua han slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong cua han slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong cua han slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong cua han slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.