Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu nganh » vien nganh, hiem ngan, hieu manh
nang cong » nang song, dang cong, bang cong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
trang va » hang va
tran van » luan van
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: hoc ((chieu xanh) or (hieu nganh)) - hanh ((trang va) or (tran van)) nang cong danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu nganh)) - hanh ((trang va) OR (tran van)) nang cong danh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu nganh)) - hanh ((trang va) or (tran van)) nang cong danh toan cau*.