Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong doanh do snippets" » "dong doanh code snippets", "dung doanh do snippets", "trong doanh do snippets", "doanh doanh do snippets", "dong doanh dao snippets", "dong doanh co snippets", "dong doan do 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 doanh do 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 doanh do snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong doanh do snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong doanh do snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.