Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"luong dao trinh slippers" » "duong dao trinh slippers", "truong dao trinh slippers", "luong giao trinh slippers", "luong dao tinh slippers", "luong tao trinh slippers", "luong dan trinh slippers", "luong dao trinh slippery", "luong dao 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 ("luong dao 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 ("luong dao trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( luong dao trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("luong dao trinh slippers"))) or ("locating bug code snippets"))*.