Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc phan cua snippets" » "duc phan code snippets", "dung phan cua snippets", "duc thang cua snippets", "duc phung cua snippets", "duc nhan cua snippets", "duc than cua snippets", "duc phat cua snippets"
"python using java snippets" » "python using data 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: (((("duc phan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc phan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duc phan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc phan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.