Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nho dam chat snippets" » "nho lam chat snippets", "nho cao chat snippets", "nho van chat snippets", "nhom lam chat snippets", "nho kham 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: (((("nho dam 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: (((("nho dam chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nho dam chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nho dam chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.