Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cuong do snippets" » "van cuong code snippets", "van chuong do snippets", "van duong do snippets", "van cong do snippets", "van cuong dao snippets", "van cuong vo snippets", "van luong do snippets"
"using java java snippets" » "using data 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: (((("van cuong do snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van cuong do snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( van cuong do snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))*.