Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"oc van ruan snippets" » "oc van quan snippets", "oc van tuan snippets", "oc van huan snippets", "hoc van ruan snippets", "luoc van ruan snippets", "quoc van ruan 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: (((("oc van ruan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( oc van ruan snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("oc van ruan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.