Perhaps you should try some spelling variations:
"cuong ca cham snippets" » "cuong ca code snippets", "cuong cac cham snippets", "cuong cua cham snippets", "cuong ma cham snippets", "cuong cau cham snippets", "cuong va cham snippets", "cuong co cham snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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: (((("cuong ca cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong ca cham snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cuong ca cham snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong ca cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.