Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong chan chi snippets" » "dong chan code snippets", "dong chuan chi snippets", "jong chan chi snippets", "dong chen chi snippets", "dong can chi snippets", "dong chan cho snippets", "dong chung chi 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 chi 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 chi snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong chan chi snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong chan chi snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.