Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi nhan cua snippets" » "doi nhan code snippets", "doi khang cua snippets", "tri nhan cua snippets", "hoi nhap cua snippets", "doi nhat cua snippets", "doi nhan luc snippets", "doi nhan su 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: (((("doi nhan 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: (((("doi nhan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi nhan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi nhan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.