Perhaps you should try some spelling variations:
"trinh dan day slippers" » "trinh han day slippers", "trinh van day slippers", "trinh san day slippers", "trinh da day slippers", "trinh dan dat slippers", "trinh dan da slippers", "trinh dan day slippery", "trinh dan day 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: (((("trinh dan day slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dan day slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dan day slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dan day slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.