Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu hang hoa snippets" » "chu han hoa snippets", "thu hang hoa snippets", "cho hang hoa snippets", "chu hang khoa snippets", "chu thanh hoa snippets", "chu hang 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: (((("chu hang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu hang hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu hang hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu hang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.