Perhaps you should try some spelling variations:
"trinh lam dat slippers" » "trinh lap dat slippers", "trinh tam dat slippers", "trinh cam dat slippers", "trinh lam dau slippers", "trinh lam dao slippers", "trinh lam dat slippery", "trinh lam dat 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 lam dat 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 lam dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh lam dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh lam dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.