Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"long doan du snippets" » "long doan code snippets", "cong doan du snippets", "dong doanh du snippets", "rong doanh du snippets", "long doan dau snippets", "long toan du snippets", "long doan do snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("long doan du snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("long doan du snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( long doan du snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("long doan du snippets"))) or ("locating bug core snippets"))*.