Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
tinh cho » trinh cho, tinh co, trinh chao
tinh cao » tinh lao, tinh chat, tinh cach
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (lieu tinh)) - hanh ((tinh cho) OR (tinh cao)) thuong cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (lieu tinh)) - hanh ((tinh cho) OR (tinh cao)) thuong cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (lieu tinh)) - hanh ((tinh cho) OR (tinh cao)) thuong cong tan toan tap*.