Perhaps you should try some spelling variations:
nhieu tang » chieu sang, hieu lang, nhiet nang
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hanh phan » thanh phan, anh phan, hanh han
cong tinh » cong trinh, cong vinh, long tinh
toan cau » toan cao, toan ban, toan tap
phan va » phan van, nhan va, han va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (chieu xanh)) - hanh phan va nhung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (chieu xanh)) - hanh phan va nhung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (chieu xanh)) - hanh phan va nhung cong tinh toan cau*.