Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong ti trinh slippers" » "cong thi trinh slippers", "cong tien trinh slippers", "cong tieu trinh slippers", "cong ty trinh slippers", "cong li trinh slippers", "cong tu trinh slippers", "cong ti trinh slippery", "cong ti trinh grippers"
"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 ti 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 ti trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong ti trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ti trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.