Perhaps you should try some spelling variations:
chieu xanh » chieu tinh, hieu manh
chieu sang » hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, hieu cach
trinh nhan » trinh han, trinh phan, trinh nha
chung cong » nhung cong, chong cong, phung cong
cong thanh » dong thanh, cong trinh, cong tan
thanh phan » thanh pho, thanh san, thanh toan
luc chung » luan chung, luat chung, luc phuong
nhan luc » nang luc
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: hoc ((((chieu xanh) OR (chieu sang))) or (chieu sach)) - trinh nhan luc chung cong thanh phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu sang))) OR (chieu sach)) - trinh nhan luc chung cong thanh phan dau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu xanh) OR (chieu sang))) or (chieu sach)) - trinh nhan luc chung cong thanh phan dau*".