Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc hoat doi snippets" » "luc hoat code snippets", "chuc hoat doi snippets", "luan hoat doi snippets", "thuc hoat doi snippets", "luc hoa doi snippets", "luc hat doi snippets", "luc hoat dong 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: (((("luc hoat doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc hoat doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc hoat doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc hoat doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.