Perhaps you should try some spelling variations:
"dang hanh java snippets" » "dang thanh java snippets", "ban hanh java snippets", "dang van java snippets", "dang hanh va snippets"
"dung dung de snippets" » "duong dung de snippets", "ung dung de snippets", "dung ung de snippets", "dung dung he snippets", "dung dung dat 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: (((("dang hanh java snippets") or ("dung dung de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hanh java snippets") OR ("dung dung de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hanh java snippets ) or ( dung dung de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hanh java snippets") or ("dung dung de snippets"))) or ("locating bug code snippets"))*.