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