Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung khi co snippets" » "duong khi co snippets", "dung chi co snippets", "dung thi co snippets", "dung khi con snippets", "dung khi cu snippets", "dung khi mo 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: (((("dung khi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung khi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung khi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung khi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.