Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"va dong code snippets" » "va dong co snippets", "va dong che snippets", "va dong cong snippets", "van dong code snippets", "ha dong code snippets", "xa dong code 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: "((((\"va dong code snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( va dong code snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va dong code snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.