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