Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan qua cua snippets" » "nhan qua code snippets", "nhan cua cua snippets", "nhat qua cua snippets", "phan quan cua snippets", "nhan quan cua snippets", "nhan quang cua snippets", "nhan qua quan 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: (((("nhan qua 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: (((("nhan qua cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhan qua cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan qua cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.