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