Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
toan thuc » toan hoc, dan thuc, nhan thuc
thuc hung » thuc chung, thuc nhung, thuc dung
hung cong » nhung cong, hung cuong, phung cong
cong than » cong thanh, cong thang, cong tan
ho chieu » theo chieu, hoc thieu, mot chieu
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - tinh toan thuc hung cong than ((phan lap) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - tinh toan thuc hung cong than ((phan lap) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - tinh toan thuc hung cong than ((phan lap) OR (phan dau))*.