Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran doanh cao snippets" » "tran doanh code snippets", "toan doanh cao snippets", "trai doanh cao snippets", "tran danh cao snippets", "tran doanh co snippets", "tran doanh bao snippets", "tran doanh 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: (((("tran doanh cao snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran doanh cao snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tran doanh cao snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran doanh cao snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.