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