Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
dang cong » dung cong
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than tap » toan tap, han tap, phan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - hanh ((trung cua) OR (trung tuan)) dang cong tac than tap~".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - hanh ((trung cua) OR (trung tuan)) dang cong tac than tap*.