Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu dan dong snippets" » "khu van dong snippets", "khu dan dung snippets", "khu dao dong snippets", "khau dan dong snippets", "khu doan dong snippets", "thuc dan dong 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: (((("khu dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu dan dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu dan dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.