Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gio hieu de snippets" » "gia hieu de snippets", "gioi thieu de snippets", "gian hieu de snippets", "gio hieu ve snippets", "gio hieu he snippets", "gio hieu 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: (((("gio hieu de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gio hieu de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gio hieu de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gio hieu de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.