Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi benh cua snippets" » "doi benh code snippets", "doc benh cua snippets", "noi benh cua snippets", "duoc benh cua snippets", "doi benh chua snippets", "doi menh cua snippets", "doi benh luan 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 benh 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 benh cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi benh cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi benh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.