Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"toan lua data snippets" » "toan luan data snippets", "toan luat data snippets", "toan cua data snippets", "toan luat dat snippets", "toan a data snippets", "toan lua dao snippets"
"locating bug core snippets" » "locating bug code 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 code snippets\") OR (\"toan lua data snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( toan lua data snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("toan lua data snippets"))) OR ("locating bug core snippets"))*.