Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
chua nang » chuc nang, kha nang, cuu nang
chua xang » chuc nang, chu bang, chua dong
anh dang » anh dong, anh dung, anh bang
toan tap » toan ban

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 - anh dang ((chua nang) or (chua xang)) cong thanh ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - anh dang ((chua nang) OR (chua xang)) cong thanh ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - anh dang ((chua nang) or (chua xang)) cong thanh ((toan tap) or (van ban))*.