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