Perhaps you should try some spelling variations:
"cuoc tranh co snippets" » "cuoc thanh co snippets", "chuoc thanh co snippets", "co tranh co snippets", "cuoc trinh co snippets", "cuoc tranh o snippets", "cuoc tranh 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: (((("cuoc tranh co snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuoc tranh co snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuoc tranh co snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuoc tranh co snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.