Perhaps you should try some spelling variations:
"lua chinh danh slippers" » "lua chinh doanh slippers", "lua chinh dang slippers", "lua chinh sach slippers", "luan chinh danh slippers", "cua chinh danh slippers", "luat hinh danh slippers", "lua chinh danh slippery", "lua chinh danh 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: (((("dung java java snippets") or ("lua chinh danh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("lua chinh danh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( lua chinh danh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("lua chinh danh slippers"))) or ("locating bug code snippets"))*.