Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac dung do snippets" » "sach dung do snippets", "xay dung do snippets", "tin dung do snippets", "tac dung doi snippets", "tac dung co snippets", "tac dung de 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: (((("tac dung 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: (((("tac dung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac dung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac dung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.