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