Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai dang co snippets" » "dai dang co snippets", "hai bang co snippets", "hoi dang co snippets", "hai dong co snippets", "hai dung co snippets", "hai dang do 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: (((("hai dang co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai dang co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai dang co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai dang co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.