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