Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung tuc cac snippets" » "dung tu cac snippets", "dung thuoc cac snippets", "dung quoc cac snippets", "dung tich cac 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 tuc cac 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 tuc cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tuc cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tuc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.