Perhaps you should try some spelling variations:
trong quan » thong quan, thong quang, luong quan
duong cong » dung cong, luong cong, duong trong
tong quan » thong quan, tong luan, luong quan
cong tinh » cong trinh, cong vinh, long tinh
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 (tong quan)) duong cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - dinh ((trong quan) OR (tong quan)) duong cong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - dinh ((trong quan) or (tong quan)) duong cong tinh toan cao*.