Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung tuan, trung cap
nang cong » nang song, dang cong, bang cong
cua nang » chua nang, cua dang, cua hang
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - thanh trung cua nang cong dan ((((than cau) or (toan cau))) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - thanh trung cua nang cong dan ((((than cau) OR (toan cau))) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh trung cua nang cong dan ((((than cau) or (toan cau))) or (phan tu))*.