Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong van den snippets" » "cong van code snippets", "cong vang den snippets", "cong san den snippets", "song van den snippets", "cong van de snippets", "cong van der snippets", "cong ban den snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong van den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong van den snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong van den snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong van den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.