Perhaps you should try some spelling variations:
"tran thu trinh slippers" » "tran thi trinh slippers", "tran tho trinh slippers", "tran thu tinh slippers", "tran thuy trinh slippers", "tuan thu trinh slippers", "tran thu trinh slippery", "tran thu 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran thu 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: (((("tran thu trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran thu trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran thu trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.