Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
nang luong » nang song
luong tinh » luong tin, long tinh, luong ninh
luat nang » luan nang, suat nang, xuat nang
doc hieu » toc thieu, hoc thieu, hoc hien
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: doc hieu nganh - hanh trinh luat nang luong tinh toan cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - hanh trinh luat nang luong tinh toan cau*.