Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hoang hai snippets" » "quan hoang hai snippets", "tran quang hai snippets", "tranh hang hai snippets", "tran hang hai snippets", "tran hoang nham snippets", "tran hoang thi snippets"
"dung java java snippets" » "dung va java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran hoang hai snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tran hoang hai snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( tran hoang hai snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))*.