Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
nhung cong » dung cong, thong cong, hang cong
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua nhung » va nhung
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
sinh cua » manh cua, dinh cuu, sinh va
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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

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