Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
cap nhung » cam nhung, vap nhung, dap nhung
tung cap » trung cap, cung cap, thong cap
cong ban » cong bang, cong tan, cong dan
cong san » cong tac

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 tung cap nhung ((cong ban) or (cong san)) thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh tung cap nhung ((cong ban) OR (cong san)) thanh san.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung cap nhung ((cong ban) or (cong san)) thanh san*.