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