Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu tang cua snippets" » "phu lang cua snippets", "phu tung cua snippets", "phap tang cua snippets", "phu mang cua snippets", "phu hang cua snippets", "phu tang luan 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: (((("phu tang 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: (((("phu tang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu tang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu tang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.