Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua quoc cao snippets" » "cua nuoc cao snippets", "cua thuoc cao snippets", "cua quoc bao snippets", "cua quoc cac snippets", "cua 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: (((("cua 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: (((("cua quoc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua quoc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua quoc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.