Perhaps you should try some spelling variations:
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, truong thanh
chi xanh » chi anh, chi danh, chi hanh
cong tan » cong tac, cong san, cong ty
tran ban » tranh ban, tran van, toan ban
doi chi » doi khi
dam ung » dap ung, dan ung, dam duong

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 - ((thanh trung) or (thanh tung)) dam ung ((cong tan) OR (cong thanh)) tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((thanh trung) OR (thanh tung)) dam ung ((cong tan) OR (cong thanh)) tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - ((thanh trung) or (thanh tung)) dam ung ((cong tan) OR (cong thanh)) tran ban".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - ((thanh trung) or (thanh tung)) dam ung ((cong tan) OR (cong thanh)) tran ban*.