Perhaps you should try some spelling variations:
"dang think java snippets" » "dang thi java snippets", "dang thanh java snippets", "dang tinh java snippets", "dang trinh java snippets"
"dong hoc de snippets" » "dong co de snippets", "dong luc de snippets", "dong hoc he snippets", "dong hoc te snippets", "dong hoc do 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 think java snippets") or ("dong hoc de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang think java snippets") OR ("dong hoc de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang think java snippets ) or ( dong hoc de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang think java snippets") or ("dong hoc de snippets"))) or ("locating bug code snippets"))*.