Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc cua doi snippets" » "luc cua code snippets", "luc chua doi snippets", "luc nua doi snippets", "tuc cua doi snippets", "luc sua doi snippets", "luc cua dai snippets", "luc cua hoi 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 cua 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 cua doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc cua doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc cua doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.