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