Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac cau chap snippets" » "xac cau cham snippets", "xac cau chan snippets", "xac cau phap snippets", "bac cau chap snippets", "cac cau chap snippets", "xac cao 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: (((("xac 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: (((("xac cau chap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac cau chap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.