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