Perhaps you should try some spelling variations:
"cong tieu trinh slippers" » "cong tien trinh slippers", "cong tien thinh slippers", "cong trieu tinh slippers", "cong dieu trinh slippers", "cong hieu trinh slippers", "cung tieu trinh slippers", "cong tieu trinh slippery", "cong tieu 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 tieu 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 tieu trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tieu trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tieu trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.