Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau noi cong snippets" » "cau noi code snippets", "cau nguoi cong snippets", "cau tai cong snippets", "cau thi cong snippets", "cau hoi cong snippets", "cau doi cong snippets", "cach noi cong 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 noi cong 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 noi cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cau noi cong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau noi cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.