Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java core snippets" » "using data core snippets"
"dung lua rai snippets" » "dung luan rai snippets", "dung luat rai snippets", "dung cua rai snippets", "dung lua lai snippets", "dung luat dai snippets", "dung luan rui snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java core snippets") OR ("dung lua rai snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( dung lua rai snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("dung lua rai snippets"))) or ("locating bugs code snippets"))*.