Perhaps you should try some spelling variations:
"dan thuc cuoc snippets" » "dan chuc cuoc snippets", "dan thuc quoc snippets", "dan thuc uoc snippets", "dan toc cuoc snippets", "am thuc cuoc 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: (((("dan thuc cuoc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan thuc cuoc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan thuc cuoc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thuc cuoc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.