Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai lang cao snippets" » "hai long cao snippets", "hoi lang cao snippets", "tai lang cao snippets", "hai nang cao snippets", "hai lang co snippets", "hai quang cao 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 lang cao 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 lang cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai lang cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai lang cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.