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