Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua nam co snippets" » "cua tam co snippets", "cua ngan co snippets", "cua nhan co snippets", "cua nam cao snippets", "cua nam bo snippets", "cua nam so 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 nam co 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 nam co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua nam co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua nam co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.