Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cung he snippets" » "hang cong he snippets", "tang cuong he snippets", "thong cung he snippets", "hang dung he snippets", "hang cung me snippets", "hang cung te 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 cung he 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 cung he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cung he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cung he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.