Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang ke chat snippets" » "thong ke chat snippets", "hanh kem chat snippets", "nhung ke chat snippets", "hang ve chat snippets", "hang te 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: (((("hang ke 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: (((("hang ke chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang ke chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang ke chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.