Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc cac doi snippets" » "duc cac code snippets", "duoc cac doi snippets", "tuc cac doi snippets", "muc cac doi snippets", "duc cac dai snippets", "duc cac toi snippets", "duc cau doi 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: (((("duc cac 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: (((("duc cac doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duc cac doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc cac doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.