Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang ky chat snippets" » "dang ky chat snippets", "trong ky chat snippets", "tang khu chat snippets", "tang ly chat snippets", "tang ky chau snippets", "tang ky nhat 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: (((("tang ky 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: (((("tang ky chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang ky chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang ky chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.