Perhaps you should try some spelling variations:
"truan doi nhap slippers" » "truyen doi nhap slippers", "quan doi nhap slippers", "khuan doi nhap slippers", "truan hoi nhap slippers", "truan doi nhan slippers", "truan moi nhat slippers", "truan doi nhap slippery", "truan doi nhap 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: (((("truan doi nhap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan doi nhap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truan doi nhap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doi nhap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.