Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoang tran cao snippets" » "hoang tran code snippets", "hoang tuan cao snippets", "hoang thanh cao snippets", "hoang van cao snippets", "hoang toan cao snippets", "hoang tran chau snippets", "hoang trang 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: (((("hoang tran 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: (((("hoang tran cao snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoang tran cao snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang tran cao snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.