Perhaps you should try some spelling variations:
thong quang » thong quan, thong qua, luong quang
trong quan » thong quan, tong quan, luong quan
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dung cong » dung trong
chi xanh » chi anh, chi danh, chi hanh
toan cao » toan ban, toan tap
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 - dinh ((trong quan) OR (thong quang)) dung cong thanh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - dinh ((trong quan) OR (thong quang)) dung cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - dinh ((trong quan) OR (thong quang)) dung cong thanh toan cao*.