Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tai cua snippets" » "van tai cua snippets", "han tai cua snippets", "ban thi cua snippets", "ban thai cua snippets", "ban tai cuc snippets", "ban tri cua 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: (((("ban tai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban tai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.