Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do danh rok snippets" » "do danh hoa snippets", "do hang rok snippets", "do danh co snippets", "do dinh rok snippets", "do sanh rok snippets", "dia danh rok 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: (((("do danh rok snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do danh rok snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do danh rok snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do danh rok snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.