Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong goi co snippets" » "cong goi code snippets", "cong noi co snippets", "cong soi co snippets", "dong goi co snippets", "cong gioi co snippets", "cong moi co snippets", "cong hoi co 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: (((("cong goi co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong goi co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong goi co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong goi co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.