Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh co lon snippets" » "anh co lon snippets", "lang co lon snippets", "danh co lon snippets", "lanh cho lon snippets", "lanh co loi snippets", "lanh co don snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("lanh co lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lanh co lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh co lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh co lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.