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