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