Perhaps you should try some spelling variations:
nhung tuong » nhung phuong, hung vuong, nhung cong
nhung huong » nhung phuong, nhung cong, nhung dung
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
trung cap » truong cao, trung tam
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu nganh) or (chieu sang)) - hanh trung cap ((nhung huong) OR (nhung tuong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (chieu sang)) - hanh trung cap ((nhung huong) OR (nhung tuong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu nganh) or (chieu sang)) - hanh trung cap ((nhung huong) OR (nhung tuong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (chieu sang)) - hanh trung cap ((nhung huong) OR (nhung tuong)) dan than cau*.