Perhaps you should try some spelling variations:
thanh trung » thanh tung
dang cong » dung cong
dan khanh » dang khanh, van khanh, dat khanh
khi xanh » khia canh, thi hanh, thi anh
trung ca » trung cap, truong ca, trung cua
dan hanh » dang hanh, dan thanh, ban hanh
ca dang » cao dang, cua dang, cac dang

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