Perhaps you should try some spelling variations:
"cuong cac cach snippets" » "luong cac cach snippets", "cong cac cach snippets", "trong cac cach snippets", "cuong cai cach snippets", "cuong cuoc cach snippets", "cuong va cach 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 cac cach 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 cac cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong cac cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong cac cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.