Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong chan che snippets" » "dong chan code snippets", "dong chuan che snippets", "jong chan che snippets", "dong chen che snippets", "dong han che snippets", "dong phan che snippets", "dong chan cho snippets"
"dung java java snippets" » "dung va java 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 chan che snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong chan che snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong chan che snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong chan che snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.