Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"da lieu data snippets" » "da lieu dao snippets", "da bieu dat snippets", "da lieu da snippets", "du lieu data snippets", "da dieu data snippets", "vat lieu data 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 (\"da lieu data snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( da lieu data snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("da lieu data snippets"))) OR ("locating bug core snippets"))*.