Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"tu trong code snippets" » "tu trong cong snippets", "tu trong co snippets", "tu trong che snippets", "tu tuong code snippets", "tu tieng code snippets"
"locating bug core snippets" » "locating bug code snippets"

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

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