Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"trinh cad code snippets" » "trinh cau code snippets", "trinh cac code snippets", "trinh cam code snippets", "trinh cfd code snippets", "trinh cad model snippets"
"locating bug core snippets" » "locating bug 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: "((((\"hang java java snippets\") OR (\"trinh cad code snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( hang java java snippets ) OR ( trinh cad code snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hang java java snippets") OR ("trinh cad code snippets"))) OR ("locating bug core snippets"))*.