Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua nhung » va nhung
hoi tieu » hoc tieu, hoi hieu, hoi tiep
sinh cua » manh cua, dinh cuu, sinh va
ho hieu » ho chieu, hoi hieu, nho hieu
san dau » van dau, san diu, han dau
ban dau » bat dau, ban dan, van dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (hoi tieu)) lang - hanh sinh cua nhung cong trinh ((san dau) OR (ban dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (hoi tieu)) lang - hanh sinh cua nhung cong trinh ((san dau) OR (ban dau))~".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (hoi tieu)) lang - hanh sinh cua nhung cong trinh ((san dau) OR (ban dau))*.