Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trac trong thi snippets" » "tac trong thi snippets", "tran trong thi snippets", "trac trung thi snippets", "trac trong thoi snippets", "trac trong thu snippets", "trac trong tho 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: (((("trac trong thi snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"trac trong thi snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( trac trong thi snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))*.