Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do tuan da snippets" » "do xuan da snippets", "do quang da snippets", "do tuan do snippets", "do tuan dang snippets", "do toan dam 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 tuan da 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 tuan da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do tuan da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do tuan da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.