Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cao thuong » cao truong, ca thuong, cho thuong
chau tinh » cuu tinh, ha tinh, cua tinh
hanh nang » anh nang, ganh nang, hanh mang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chau tinh) or (trieu tinh)) - hanh nang cao thuong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chau tinh) OR (trieu tinh)) - hanh nang cao thuong cong dan toan cau*.