Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoi yang con snippets" » "hoi yang code snippets", "hoi lang con snippets", "hoi dang con snippets", "hoi nang con snippets", "hoi yang kon snippets", "hoi dang cong snippets", "hoi hang cong 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: (((("hoi yang con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi yang con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoi yang con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi yang con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.