Perhaps you should try some spelling variations:
"cong cuoc cham snippets" » "song cuoc cham snippets", "trong cuoc cham snippets", "luong cuoc cham snippets", "cong cuoc chay snippets", "cong duoc pham snippets", "cong toc cham 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: (((("cong cuoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cuoc cham snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cuoc cham snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cuoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.