Perhaps you should try some spelling variations:
"nhan using java snippets" » "nhan sinh java snippets", "nhan ung java snippets", "nhan using data snippets"
"dong bang code snippets" » "dong san code snippets", "dong bang cong snippets", "dong bang che snippets", "dong bang cot snippets"
"locating bug core snippets" » "locating bug code 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: (((("dong bang code snippets") or ("nhan using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong bang code snippets") OR ("nhan using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong bang code snippets ) or ( nhan using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong bang code snippets") or ("nhan using java snippets"))) or ("locating bug core snippets"))*.