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