Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java core snippets" » "using data core snippets"
"lan van phi snippets" » "luan van phi snippets", "lang van phi snippets", "tan van phi snippets", "lan van chi snippets", "lan van phu snippets", "lan van nhi 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 ("lan van phi snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( lan van phi snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("lan van phi snippets"))) or ("locating bugs code snippets"))*.