Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cao doi trinh slippers" » "cao doc trinh slippers", "cao doi tinh slippers", "cao dong trinh slippers", "cho doi trinh slippers", "cau doi trinh slippers", "cac doi trinh slippers", "cao doi trinh slippery", "cao doi 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 ("cao doi 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 ("cao doi trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cao doi trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cao doi trinh slippers"))) or ("locating bug code snippets"))*.