Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung phat do snippets" » "dung phan do snippets", "dang phat do snippets", "dung chat do snippets", "dung hat do snippets", "dung phac do snippets", "dung pham do 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 phat do 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 phat do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung phat do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung phat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.