Perhaps you should try some spelling variations:
"cong tuan trinh slippers" » "cong xuan trinh slippers", "cong thanh trinh slippers", "cong thuat trinh slippers", "cong tan trinh slippers", "cong luan trinh slippers", "cong tuan trinh slippery", "cong tuan 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: (((("cong tuan 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: (((("cong tuan trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tuan trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tuan trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.