Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan don chat snippets" » "dan doc chat snippets", "dan cong chat snippets", "dan dinh chat snippets", "dan dong chat snippets", "dang don chat snippets", "dan den chat 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: (((("dan don chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan don chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan don chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan don chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.