Perhaps you should try some spelling variations:
"khai xuan trinh slippers" » "khai qua trinh slippers", "khai xuan dinh slippers", "khai xuan kinh slippers", "khai tuan trinh slippers", "khai luan trinh slippers", "hai quan trinh slippers", "khai xuan trinh slippery", "khai xuan trinh 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: (((("khai xuan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khai xuan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai xuan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai xuan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.