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