Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhanh dong
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
nhan dang » nhan dan, phan dang, tran dang
dang toan » dang tran, dan toan, dung toan
30 trieu » 25 trieu
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - ((nhanh lang) or (nhan dang)) luan ((nhung cong) OR (thong cong)) dang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - ((nhanh lang) OR (nhan dang)) luan ((nhung cong) OR (thong cong)) dang toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - ((nhanh lang) or (nhan dang)) luan ((nhung cong) OR (thong cong)) dang toan cau".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - ((nhanh lang) or (nhan dang)) luan ((nhung cong) OR (thong cong)) dang toan cau*.