Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duoc doi da snippets" » "duoc doi code snippets", "cuoc doi da snippets", "duoc hoi da snippets", "luoc doi da snippets", "duoc doi dau snippets", "duoc doi dam snippets", "duoc doi dan 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 doi da 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 doi da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duoc doi da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc doi da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.