Perhaps you should try some spelling variations:
"cuong quan che snippets" » "luong quan che snippets", "vuong quan che snippets", "luong quang che snippets", "cuong quan he snippets", "cuong han che snippets", "cuong quan ha snippets"
"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: (((("cuong quan che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong quan che snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong quan che snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong quan che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.