Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, mot chieu
trung cao » truong cao, trung cap, trung co
bang cong » dang cong, bang song, hang cong
cao bang » cao dang, cao tang, cao nang
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, 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: doi chieu xanh - thanh trung cao bang cong san than cao~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung cao bang cong san than cao*.