Perhaps you should try some spelling variations:
"nhan think java snippets" » "nhan thanh java snippets", "nhan thong java snippets", "nhan tinh java snippets", "nhan trinh java snippets"
"dung cho cong snippets" » "dung cao cong snippets", "dung cua cong snippets", "dung cac cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("nhan think java snippets") or ("dung cho cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan think java snippets") OR ("dung cho cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan think java snippets ) or ( dung cho cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan think java snippets") or ("dung cho cong snippets"))) or ("locating bug code snippets"))*.