Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dao so chat snippets" » "dao soat chat snippets", "dao song chat snippets", "dao cao chat snippets", "dai so chat snippets", "dao o chat snippets", "dao do chat 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: (((("dao so chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao so chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao so chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao so chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.