Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhin van te snippets" » "nhan van te snippets", "thien van te snippets", "nhung van te snippets", "nhin van de snippets", "nhin van tu snippets", "nhin van le 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: (((("nhin van te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhin van te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhin van te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhin van te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.