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