Perhaps you should try some spelling variations:
"han che cong snippets" » "han cho cong snippets", "han chi cong snippets", "han he cong snippets", "phan che cong snippets", "nhan che cong snippets", "hanh che cong snippets"
"nnhanhg java java snippets" » "nnphanhg java java snippets", "nnnhanhg java java snippets", "nnhanhhg java java 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: (((("han che cong snippets") or ("nnhanhg java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han che cong snippets") OR ("nnhanhg java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han che cong snippets ) or ( nnhanhg java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han che cong snippets") or ("nnhanhg java java snippets"))) or ("locating bug code snippets"))*.