Perhaps you should try some spelling variations:
thanh tung » thanh cong
cong vang » cong lang, cong quang, cong ngang
chi xanh » chi anh, chi danh, chi hanh
cua dung » cua dang, cua dong, qua dung
cong van » cong san, song van, cong tan
than cau » toan cau, phan cau, than cap
doi chi » doi khi

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