Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu da di snippets" » "hieu dac di snippets", "hieu dia di snippets", "hieu va di snippets", "hieu pa di snippets", "hieu da gi snippets", "hieu ma di 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: (((("hieu da di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu da di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu da di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu da di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.