Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han lang cao snippets" » "nhan lang cao snippets", "ban lang cao snippets", "ha lang cao snippets", "han nang cao snippets", "han lang co snippets", "han quang cao 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: (((("han lang cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han lang cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han lang cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han lang cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.