Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
manh cua » doanh cua, ban cua
cong tac » cong ty
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - hanh manh cua nhung cong tac ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh manh cua nhung cong tac ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh manh cua nhung cong tac ((phan cau) or (phan cac))*.