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