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