Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tinh » nhanh tinh, thanh tinh, canh tinh
cua nhung » va nhung
trinh van » trinh han, trinh quan, trinh toan
nho hieu » nha hieu, nho sieu, nhu hieu
van dau » van dao, phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - ((hanh tinh) OR (hanh trinh)) cua nhung cong trinh van dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - ((hanh tinh) OR (hanh trinh)) cua nhung cong trinh van dau".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - ((hanh tinh) OR (hanh trinh)) cua nhung cong trinh van dau*.