Perhaps you should try some spelling variations:
"cuon hanh che snippets" » "cuon danh che snippets", "cuong danh che snippets", "cuoc thanh che snippets", "cuon han che snippets", "cuon hanh he snippets", "cuon hanh nghe snippets"
"dung java java snippets" » "dung va 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: (((("cuon hanh che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon hanh che snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon hanh che snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon hanh che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.