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