Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
hieu quan » hieu qua, lieu quan, thien quan
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
cong tinh » cong trinh, cong vinh, long tinh
tang cua » mang cua, hang cua, tang luan
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: hoi ((((hieu lang) or (nhieu tang))) or (hieu quan)) - hanh tang cua nhung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((((hieu lang) OR (nhieu tang))) OR (hieu quan)) - hanh tang cua nhung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoi ((((hieu lang) or (nhieu tang))) or (hieu quan)) - hanh tang cua nhung cong tinh toan cau*.