Perhaps you should try some spelling variations:
"cong nhanh cuc snippets" » "cong thanh cuc snippets", "cong nhan cuc snippets", "cong khanh cuc snippets", "cong nhanh thuc snippets", "cong nhan luc snippets", "cong nhanh tu 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 nhanh cuc 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 nhanh cuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nhanh cuc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nhanh cuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.