Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac thai cua snippets" » "rac thai cua snippets", "sac thai cua snippets", "xa thai cua snippets", "xac than cua snippets", "xac tai cuc snippets", "xac tri 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: (((("xac thai 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: (((("xac thai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac thai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac thai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.