Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"anh truong va snippets" » "manh truong va snippets", "anh thuong va snippets", "anh trong va snippets", "anh truong dai snippets", "anh truong cao snippets", "anh truong dao snippets", "anh truong va slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using java java snippets\") OR (\"anh truong va snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( anh truong va snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("anh truong va snippets"))) OR ("locating bug code snippets"))*.