Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi trinh te snippets" » "doi trinh code snippets", "doc trinh te snippets", "doi tinh te snippets", "dong trinh te snippets", "doi trinh tu snippets", "doi trinh he snippets", "doi trinh ve 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 trinh te 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 trinh te snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi trinh te snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi trinh te snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.