Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh co cao snippets" » "trinh co code snippets", "trinh do cao snippets", "trinh cong cao snippets", "trinh hoa cao snippets", "trinh cho cao snippets", "trinh cu cao snippets", "trinh co cau 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: (((("trinh co cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh co cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh co cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh co cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.