Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
thuat hang » thuat hung, thuat bang, thuat mang
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh

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 - hanh trinh thuat hang cong tan ((tran huu) or (tran duc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh trinh thuat hang cong tan ((tran huu) OR (tran duc)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh trinh thuat hang cong tan ((tran huu) or (tran duc))*.