Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi hanh cat snippets" » "doi hanh code snippets", "doc hanh cat snippets", "doi khang cat snippets", "thi hanh cat snippets", "doi hanh cac snippets", "doi hanh luat snippets", "doi nhanh cay 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 hanh cat 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 hanh cat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi hanh cat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi hanh cat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.