Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho giau cua snippets" » "cho giao cua snippets", "cho gia cua snippets", "cho giang cua snippets", "cho gian cua snippets", "cho dieu 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: (((("cho giau 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: (((("cho giau cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho giau cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho giau cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.