Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"doan think java snippets" » "doan thi java snippets", "doan hinh java snippets", "doan thien java snippets", "doan trinh java snippets"
"dung cac co snippets" » "luong cac co snippets", "dung cho co snippets", "dung tai co snippets", "dung cac cong 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: (((("doan think java snippets") or ("dung cac co snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan think java snippets") OR ("dung cac co snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( doan think java snippets ) or ( dung cac co snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan think java snippets") or ("dung cac co snippets"))) or ("locating bugs code snippets"))*.