Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi phau con snippets" » "doi phat con snippets", "doi thu con snippets", "toi pham con snippets", "doi phai con snippets", "doi phan cong snippets", "doi pham cong 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: (((("doi phau con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi phau con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi phau con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi phau con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.