Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"quan long san snippets" » "quan lang san snippets", "quan dong san snippets", "quan hoang san snippets", "quan long span snippets", "quan luong san snippets", "quan cong san 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: (((("quan long san snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"quan long san snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( quan long san snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))*.