Perhaps you should try some spelling variations:
"cuong voi chat snippets" » "cuong voi code snippets", "cuong vo chat snippets", "tuong voi chat snippets", "cuong bai chat snippets", "cuong voi nhat snippets", "cuong van chat snippets", "cuong hop chat 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: (((("dung java java snippets") or ("cuong voi chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cuong voi chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cuong voi chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cuong voi chat snippets"))) or ("locating bug core snippets"))*.