Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
dung cong » dung trong
chi xanh » chi danh, chi hanh, chieu xanh
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
chi anh » chi danh, chi hanh, thi anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) or (chi anh)) - hanh ((trung cua) OR (trung tuan)) dung cong tan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi anh)) - hanh ((trung cua) OR (trung tuan)) dung cong tan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) or (chi anh)) - hanh ((trung cua) OR (trung tuan)) dung cong tan phan tu".
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi anh)) - hanh ((trung cua) OR (trung tuan)) dung cong tan phan tu*.