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