Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat cau chap snippets" » "mat cau cham snippets", "mat cau chan snippets", "mat cau phap snippets", "mau cau chap snippets", "dat cau chap snippets", "mat can chap 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: (((("mat cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat cau chap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat cau chap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.