Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong ton cho snippets" » "dong von cho snippets", "dong son cho snippets", "dong tin cho snippets", "dong toan cho snippets", "dong ton kho snippets", "dong trong cho 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 ton cho 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 ton cho snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong ton cho snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ton cho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.