Perhaps you should try some spelling variations:
"cong thanh theo snippets" » "dong thanh theo snippets", "cong trinh theo snippets", "cong tan theo snippets", "cong hanh theo snippets", "cong thanh thao snippets", "cong thanh thieu snippets", "cong thanh theo slippers"
"dung java java snippets" » "dung va java snippets", "dung java 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 thanh theo snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong thanh theo snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong thanh theo snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong thanh theo snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.