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