Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui hang hoa snippets" » "bui hong hoa snippets", "bui thanh hoa snippets", "bui quang hoa snippets", "bui hang khoa snippets", "bui 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: (((("bui 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: (((("bui hang hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui hang hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui hang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.