Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc tao lua snippets" » "duc tan lua snippets", "duc tho lua snippets", "duc dao lua snippets", "duc tao luan snippets", "duc bao lua snippets", "duc tro lua snippets", "duc tao lua slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"duc tao lua snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( duc tao lua snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("duc tao lua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.