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