Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doc cua lua snippets" » "hoc cua lua snippets", "doi cua lua snippets", "do cua lua snippets", "doc cua luat snippets", "doc ca lua snippets", "doc cua rua 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: (((("doc cua lua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( doc cua lua snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doc cua lua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.