Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cong de snippets" » "cong cong code snippets", "cong dong de snippets", "trong cong de snippets", "dung cong de snippets", "cong cong da snippets", "cong cong ve snippets", "cong cong dieu snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong cong de 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 cong de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong cong de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cong de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.