Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han khau da snippets" » "san khau da snippets", "nhap khau da snippets", "nhan kham da snippets", "han khau dan snippets", "han kham da snippets", "han khau va 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: (((("han khau da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han khau da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han khau da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han khau da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.