Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong cua vo snippets" » "dong cua code snippets", "dung cua vo snippets", "cong cua vo snippets", "huong cua vo snippets", "dong cua bo snippets", "dong cua vi snippets", "dong cua co 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: (((("dong cua vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cua vo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong cua vo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cua vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.