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