Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hang cau snippets" » "tran hang code snippets", "tran hoang cau snippets", "tranh hang cau snippets", "tran thang cau snippets", "tran hang dau snippets", "tran hang ca snippets", "tran nhung cau 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: (((("dung java java snippets") or ("tran hang cau snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tran hang cau snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran hang cau snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran hang cau snippets"))) or ("locating bug core snippets"))*.