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