Perhaps you should try some spelling variations:
"dinh duc trinh slippers" » "dinh duc thinh slippers", "dinh doc trinh slippers", "dinh qua trinh slippers", "minh duc trinh slippers", "ninh duc trinh slippers", "tinh duc trinh slippers", "dinh duc trinh slippery", "dinh duc 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: (((("dinh duc 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: (((("dinh duc trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh duc trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh duc trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.