Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chi cua do snippets" » "chi cua code snippets", "chi cuc do snippets", "khi cua do snippets", "cuoi cua do snippets", "chi cua dao snippets", "chi cua bo snippets", "chi 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: (((("chi cua 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: (((("chi cua do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chi cua do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cua do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.