Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung minh vo snippets" » "duong minh vo snippets", "dung ninh vo snippets", "dung vinh vo snippets", "dung minh voi snippets", "dung minh va snippets", "dung minh ve 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 minh vo 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 minh vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung minh vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung minh vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.