Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"luc anh trac snippets" » "luc sinh trac snippets", "luc anh tuan snippets", "luc anh thuc snippets", "luc canh trac snippets", "duc anh trac snippets", "luu anh trac snippets", "luc anh trac slippers"

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: "((((\"luc anh trac snippets\") OR (\"using java java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( luc anh trac snippets ) OR ( using java java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("luc anh trac snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets"))*.