Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong sat cong snippets" » "duong sat cong snippets", "dong san cong snippets", "dong vat cong snippets", "dong bat cong snippets", "dong luat cong 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 sat cong 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 sat cong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong sat cong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong sat cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.