Perhaps you should try some spelling variations:
tranh chuan » trinh chuan, tranh chua, tranh cua
chuan nang » chua nang, chuan trang, chuc nang
tieu xanh » tieu danh, chieu xanh, dieu hanh
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu
chinh ca » chinh ta, chinh va, chinh tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - canh tranh chuan nang cong dan ((phan cau) or (chinh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - canh tranh chuan nang cong dan ((phan cau) OR (chinh ca))*.