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