Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong li toan snippets" » "cong li code snippets", "cong ti toan snippets", "hong li toan snippets", "cong hai toan snippets", "cong le toan snippets", "cong li tian snippets", "cong ly toan 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: (((("python using java snippets") or ("cong li toan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cong li toan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong li toan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong li toan snippets"))) or ("locating bug core snippets"))*.