Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"using ph chan snippets" » "using pre chan snippets", "using a chan snippets", "using _ chan snippets", "using chu chan snippets", "using tho chan snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs 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: "((((\"using java code snippets\") OR (\"using ph chan snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( using ph chan snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("using ph chan snippets"))) OR ("locating bug code snippets"))*.