Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cao duc cac snippets" » "cao duc code snippets", "dao duc cac snippets", "cao suc cac snippets", "giao duc cac snippets", "cao duoc cac snippets", "cao tuc cac snippets", "cao muc cac 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: (((("cao duc cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao duc cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cao duc cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao duc cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.