Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nhung » va nhung
tinh cua » trinh cua, sinh cua, tinh chat
luat diu » luat dieu, luat dau, luat du
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh tinh cua nhung cong trinh luat diu~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh tinh cua nhung cong trinh luat diu*.