Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai dang so snippets" » "dai dang so snippets", "hai bang so snippets", "hoi dang so snippets", "hai dang son snippets", "hai dang su 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 so 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 so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai dang so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai dang so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.