Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh co chu snippets" » "anh co chu snippets", "lang co chu snippets", "danh co chu snippets", "lanh cho chu snippets", "lanh cao chu snippets", "lanh co che 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 chu 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 chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh co chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh co chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.