Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tang co trinh slippers" » "tang co tranh slippers", "tang cong trinh slippers", "tang tao trinh slippers", "tang cho trinh slippers", "nang co trinh slippers", "tang o trinh slippers", "tang co trinh slippery", "tang co 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: (((("dung java java snippets") or ("tang co trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tang co trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tang co trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tang co trinh slippers"))) or ("locating bug code snippets"))*.