Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi danh ca snippets" » "doi danh code snippets", "doi doanh ca snippets", "do danh ca snippets", "doi hanh ca snippets", "doi dan ca snippets", "doi doanh cua snippets", "doi danh cho 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 danh ca 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 danh ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi danh ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi danh ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.