Perhaps you should try some spelling variations:
"cong cot thep snippets" » "tong cot thep snippets", "cong co thep snippets", "cong coc thep snippets", "cong cot theo snippets", "cong cot tiep snippets", "cong cot them snippets", "cong cot thep slippers"
"dung ung java snippets" » "dung trung java snippets", "dung quang java snippets", "dung chung java snippets", "dung using java snippets", "dung ngu java snippets", "dung ung va snippets", "dung ung java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("cong cot thep snippets") or ("dung ung java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cot thep snippets") OR ("dung ung java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cot thep snippets ) or ( dung ung java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cot thep snippets") or ("dung ung java snippets"))) or ("locating bug code snippets"))*.