Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java core snippets" » "using data core snippets"
"dung dat luc snippets" » "dung va luc snippets", "dung tai luc snippets", "dung dat nuoc snippets", "dung dat duoc snippets", "dung dat luan 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 core snippets\") OR (\"dung dat luc snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java core snippets ) OR ( dung dat luc snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") OR ("dung dat luc snippets"))) OR ("locating bugs code snippets"))*.