Perhaps you should try some spelling variations:
thanh trung » thanh tung
dang cong » dung cong
khi xanh » khia canh, thi hanh, thi anh
trung ca » trung cap, truong ca, trung cua
cong dan » cong san, cong tan, huong dan
hanh tap » hanh tai, hang tap, hanh cap
ca dang » cao dang, cua dang, cac dang
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - thanh trung ca dang cong dan ((hanh tap) OR (han tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - thanh trung ca dang cong dan ((hanh tap) OR (han tap))".
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - thanh trung ca dang cong dan ((hanh tap) OR (han tap))*.