Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang dai moi snippets" » "dang hai moi snippets", "dang bai moi snippets", "dang dan moi snippets", "dang doi moi snippets", "dang dai hoi 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: (((("dang dai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang dai moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang dai moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang dai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.