Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gia viet do snippets" » "gian viet do snippets", "nghia viet do snippets", "hoa viet do snippets", "gia viet dao snippets", "gia viet doi snippets", "gia viet o 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: (((("gia viet 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: (((("gia viet do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gia viet do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gia viet do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.