Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau danh dot snippets" » "cau danh code snippets", "cao danh dot snippets", "chuc danh dot snippets", "nam danh dot snippets", "cau dinh doat snippets", "cau dang do snippets", "cau danh bat 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 dot 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 dot snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cau danh dot snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau danh dot snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.